' + this.error.stack + '';\n }\n }, {\n key: 'toggleMuteVideo',\n value: function toggleMuteVideo(e) {\n e.stopPropagation();\n var parentElement = e.target.parentElement;\n var videoElement = parentElement.querySelector('video');\n\n if (this.muted) {\n this.videoElements.forEach(function (v) {\n return v.muted = false;\n });\n this.muteButton.innerHTML = (0, _muteButtons.getUnmutedButton)();\n this.muted = false;\n (0, _googleAnalytics.trackAction)('UNMUTE/' + this.sectionId);\n return;\n } else {\n this.videoElements.forEach(function (v) {\n return v.muted = true;\n });\n this.muteButton.innerHTML = (0, _muteButtons.getMutedButton)();\n this.muted = true;\n (0, _googleAnalytics.trackAction)('MUTE/' + this.sectionId);\n return;\n }\n }\n }]);\n\n return App;\n}();\n\nexports.default = App;\n\n\nwindow.App = App;\n\n//picturefill()\n\n/***/ }),\n/* 31 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar define = __webpack_require__(0);\nvar ES = __webpack_require__(1);\n\nvar implementation = __webpack_require__(12);\nvar getPolyfill = __webpack_require__(13);\nvar polyfill = getPolyfill();\nvar shim = __webpack_require__(32);\n\nvar slice = Array.prototype.slice;\n\n/* eslint-disable no-unused-vars */\nvar boundIncludesShim = function includes(array, searchElement) {\n\t/* eslint-enable no-unused-vars */\n\tES.RequireObjectCoercible(array);\n\treturn polyfill.apply(array, slice.call(arguments, 1));\n};\ndefine(boundIncludesShim, {\n\tgetPolyfill: getPolyfill,\n\timplementation: implementation,\n\tshim: shim\n});\n\nmodule.exports = boundIncludesShim;\n\n/***/ }),\n/* 32 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar define = __webpack_require__(0);\nvar getPolyfill = __webpack_require__(13);\n\nmodule.exports = function shimArrayPrototypeIncludes() {\n\tvar polyfill = getPolyfill();\n\tdefine(Array.prototype, { includes: polyfill }, { includes: function includes() {\n\t\t\treturn Array.prototype.includes !== polyfill;\n\t\t} });\n\treturn polyfill;\n};\n\n/***/ }),\n/* 33 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar define = __webpack_require__(0);\n\nvar implementation = __webpack_require__(14);\nvar getPolyfill = __webpack_require__(15);\nvar shim = __webpack_require__(34);\n\n// eslint-disable-next-line no-unused-vars\nvar boundFromShim = function from(array) {\n\t// eslint-disable-next-line no-invalid-this\n\treturn implementation.apply(this || Array, arguments);\n};\n\ndefine(boundFromShim, {\n\t'getPolyfill': getPolyfill,\n\t'implementation': implementation,\n\t'shim': shim\n});\n\nmodule.exports = boundFromShim;\n\n/***/ }),\n/* 34 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar define = __webpack_require__(0);\nvar getPolyfill = __webpack_require__(15);\n\nmodule.exports = function shimArrayFrom() {\n\tvar polyfill = getPolyfill();\n\n\tdefine(Array, { 'from': polyfill }, {\n\t\t'from': function from() {\n\t\t\treturn Array.from !== polyfill;\n\t\t}\n\t});\n\n\treturn polyfill;\n};\n\n/***/ }),\n/* 35 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar define = __webpack_require__(0);\nvar ES = __webpack_require__(1);\n\nvar implementation = __webpack_require__(16);\nvar getPolyfill = __webpack_require__(17);\nvar shim = __webpack_require__(36);\n\nvar slice = Array.prototype.slice;\n\nvar polyfill = getPolyfill();\n\nvar boundFindShim = function find(array, predicate) {\n\t// eslint-disable-line no-unused-vars\n\tES.RequireObjectCoercible(array);\n\tvar args = slice.call(arguments, 1);\n\treturn polyfill.apply(array, args);\n};\n\ndefine(boundFindShim, {\n\tgetPolyfill: getPolyfill,\n\timplementation: implementation,\n\tshim: shim\n});\n\nmodule.exports = boundFindShim;\n\n/***/ }),\n/* 36 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar define = __webpack_require__(0);\nvar getPolyfill = __webpack_require__(17);\n\nmodule.exports = function shimArrayPrototypeFind() {\n\tvar polyfill = getPolyfill();\n\n\tdefine(Array.prototype, { find: polyfill }, {\n\t\tfind: function find() {\n\t\t\treturn Array.prototype.find !== polyfill;\n\t\t}\n\t});\n\n\treturn polyfill;\n};\n\n/***/ }),\n/* 37 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar has = __webpack_require__(3);\nvar toPrimitive = __webpack_require__(43);\nvar keys = __webpack_require__(24);\n\nvar GetIntrinsic = __webpack_require__(6);\n\nvar $TypeError = GetIntrinsic('%TypeError%');\nvar $SyntaxError = GetIntrinsic('%SyntaxError%');\nvar $Array = GetIntrinsic('%Array%');\nvar $String = GetIntrinsic('%String%');\nvar $Object = GetIntrinsic('%Object%');\nvar $Number = GetIntrinsic('%Number%');\nvar $Symbol = GetIntrinsic('%Symbol%', true);\nvar $RegExp = GetIntrinsic('%RegExp%');\n\nvar hasSymbols = !!$Symbol;\n\nvar assertRecord = __webpack_require__(18);\nvar $isNaN = __webpack_require__(20);\nvar $isFinite = __webpack_require__(19);\nvar MAX_SAFE_INTEGER = $Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1;\n\nvar assign = __webpack_require__(39);\nvar sign = __webpack_require__(22);\nvar mod = __webpack_require__(21);\nvar isPrimitive = __webpack_require__(40);\nvar parseInteger = parseInt;\nvar bind = __webpack_require__(7);\nvar arraySlice = bind.call(Function.call, $Array.prototype.slice);\nvar strSlice = bind.call(Function.call, $String.prototype.slice);\nvar isBinary = bind.call(Function.call, $RegExp.prototype.test, /^0b[01]+$/i);\nvar isOctal = bind.call(Function.call, $RegExp.prototype.test, /^0o[0-7]+$/i);\nvar regexExec = bind.call(Function.call, $RegExp.prototype.exec);\nvar nonWS = ['\\x85', '\\u200B', '\\uFFFE'].join('');\nvar nonWSregex = new $RegExp('[' + nonWS + ']', 'g');\nvar hasNonWS = bind.call(Function.call, $RegExp.prototype.test, nonWSregex);\nvar invalidHexLiteral = /^[-+]0x[0-9a-f]+$/i;\nvar isInvalidHexLiteral = bind.call(Function.call, $RegExp.prototype.test, invalidHexLiteral);\nvar $charCodeAt = bind.call(Function.call, $String.prototype.charCodeAt);\n\nvar toStr = bind.call(Function.call, Object.prototype.toString);\n\nvar $NumberValueOf = bind.call(Function.call, GetIntrinsic('%NumberPrototype%').valueOf);\nvar $BooleanValueOf = bind.call(Function.call, GetIntrinsic('%BooleanPrototype%').valueOf);\nvar $StringValueOf = bind.call(Function.call, GetIntrinsic('%StringPrototype%').valueOf);\nvar $DateValueOf = bind.call(Function.call, GetIntrinsic('%DatePrototype%').valueOf);\n\nvar $floor = Math.floor;\nvar $abs = Math.abs;\n\nvar $ObjectCreate = Object.create;\nvar $gOPD = $Object.getOwnPropertyDescriptor;\n\nvar $isExtensible = $Object.isExtensible;\n\nvar $defineProperty = $Object.defineProperty;\n\n// whitespace from: http://es5.github.io/#x15.5.4.20\n// implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324\nvar ws = ['\\t\\n\\x0B\\f\\r \\xA0\\u1680\\u180E\\u2000\\u2001\\u2002\\u2003', '\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000\\u2028', '\\u2029\\uFEFF'].join('');\nvar trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g');\nvar replace = bind.call(Function.call, $String.prototype.replace);\nvar trim = function trim(value) {\n\treturn replace(value, trimRegex, '');\n};\n\nvar ES5 = __webpack_require__(38);\n\nvar hasRegExpMatcher = __webpack_require__(50);\n\n// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-abstract-operations\nvar ES6 = assign(assign({}, ES5), {\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-call-f-v-args\n\tCall: function Call(F, V) {\n\t\tvar args = arguments.length > 2 ? arguments[2] : [];\n\t\tif (!this.IsCallable(F)) {\n\t\t\tthrow new $TypeError(F + ' is not a function');\n\t\t}\n\t\treturn F.apply(V, args);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toprimitive\n\tToPrimitive: toPrimitive,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toboolean\n\t// ToBoolean: ES5.ToBoolean,\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-tonumber\n\tToNumber: function ToNumber(argument) {\n\t\tvar value = isPrimitive(argument) ? argument : toPrimitive(argument, $Number);\n\t\tif ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'symbol') {\n\t\t\tthrow new $TypeError('Cannot convert a Symbol value to a number');\n\t\t}\n\t\tif (typeof value === 'string') {\n\t\t\tif (isBinary(value)) {\n\t\t\t\treturn this.ToNumber(parseInteger(strSlice(value, 2), 2));\n\t\t\t} else if (isOctal(value)) {\n\t\t\t\treturn this.ToNumber(parseInteger(strSlice(value, 2), 8));\n\t\t\t} else if (hasNonWS(value) || isInvalidHexLiteral(value)) {\n\t\t\t\treturn NaN;\n\t\t\t} else {\n\t\t\t\tvar trimmed = trim(value);\n\t\t\t\tif (trimmed !== value) {\n\t\t\t\t\treturn this.ToNumber(trimmed);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn $Number(value);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tointeger\n\t// ToInteger: ES5.ToNumber,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint32\n\t// ToInt32: ES5.ToInt32,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint32\n\t// ToUint32: ES5.ToUint32,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint16\n\tToInt16: function ToInt16(argument) {\n\t\tvar int16bit = this.ToUint16(argument);\n\t\treturn int16bit >= 0x8000 ? int16bit - 0x10000 : int16bit;\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint16\n\t// ToUint16: ES5.ToUint16,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint8\n\tToInt8: function ToInt8(argument) {\n\t\tvar int8bit = this.ToUint8(argument);\n\t\treturn int8bit >= 0x80 ? int8bit - 0x100 : int8bit;\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint8\n\tToUint8: function ToUint8(argument) {\n\t\tvar number = this.ToNumber(argument);\n\t\tif ($isNaN(number) || number === 0 || !$isFinite(number)) {\n\t\t\treturn 0;\n\t\t}\n\t\tvar posInt = sign(number) * $floor($abs(number));\n\t\treturn mod(posInt, 0x100);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint8clamp\n\tToUint8Clamp: function ToUint8Clamp(argument) {\n\t\tvar number = this.ToNumber(argument);\n\t\tif ($isNaN(number) || number <= 0) {\n\t\t\treturn 0;\n\t\t}\n\t\tif (number >= 0xFF) {\n\t\t\treturn 0xFF;\n\t\t}\n\t\tvar f = $floor(argument);\n\t\tif (f + 0.5 < number) {\n\t\t\treturn f + 1;\n\t\t}\n\t\tif (number < f + 0.5) {\n\t\t\treturn f;\n\t\t}\n\t\tif (f % 2 !== 0) {\n\t\t\treturn f + 1;\n\t\t}\n\t\treturn f;\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tostring\n\tToString: function ToString(argument) {\n\t\tif ((typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol') {\n\t\t\tthrow new $TypeError('Cannot convert a Symbol value to a string');\n\t\t}\n\t\treturn $String(argument);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toobject\n\tToObject: function ToObject(value) {\n\t\tthis.RequireObjectCoercible(value);\n\t\treturn $Object(value);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-topropertykey\n\tToPropertyKey: function ToPropertyKey(argument) {\n\t\tvar key = this.ToPrimitive(argument, $String);\n\t\treturn (typeof key === 'undefined' ? 'undefined' : _typeof(key)) === 'symbol' ? key : this.ToString(key);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength\n\tToLength: function ToLength(argument) {\n\t\tvar len = this.ToInteger(argument);\n\t\tif (len <= 0) {\n\t\t\treturn 0;\n\t\t} // includes converting -0 to +0\n\t\tif (len > MAX_SAFE_INTEGER) {\n\t\t\treturn MAX_SAFE_INTEGER;\n\t\t}\n\t\treturn len;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring\n\tCanonicalNumericIndexString: function CanonicalNumericIndexString(argument) {\n\t\tif (toStr(argument) !== '[object String]') {\n\t\t\tthrow new $TypeError('must be a string');\n\t\t}\n\t\tif (argument === '-0') {\n\t\t\treturn -0;\n\t\t}\n\t\tvar n = this.ToNumber(argument);\n\t\tif (this.SameValue(this.ToString(n), argument)) {\n\t\t\treturn n;\n\t\t}\n\t\treturn void 0;\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-requireobjectcoercible\n\tRequireObjectCoercible: ES5.CheckObjectCoercible,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isarray\n\tIsArray: $Array.isArray || function IsArray(argument) {\n\t\treturn toStr(argument) === '[object Array]';\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-iscallable\n\t// IsCallable: ES5.IsCallable,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isconstructor\n\tIsConstructor: function IsConstructor(argument) {\n\t\treturn typeof argument === 'function' && !!argument.prototype; // unfortunately there's no way to truly check this without try/catch `new argument`\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isextensible-o\n\tIsExtensible: Object.preventExtensions ? function IsExtensible(obj) {\n\t\tif (isPrimitive(obj)) {\n\t\t\treturn false;\n\t\t}\n\t\treturn $isExtensible(obj);\n\t} : function isExtensible(obj) {\n\t\treturn true;\n\t}, // eslint-disable-line no-unused-vars\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isinteger\n\tIsInteger: function IsInteger(argument) {\n\t\tif (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {\n\t\t\treturn false;\n\t\t}\n\t\tvar abs = $abs(argument);\n\t\treturn $floor(abs) === abs;\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-ispropertykey\n\tIsPropertyKey: function IsPropertyKey(argument) {\n\t\treturn typeof argument === 'string' || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol';\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-isregexp\n\tIsRegExp: function IsRegExp(argument) {\n\t\tif (!argument || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) !== 'object') {\n\t\t\treturn false;\n\t\t}\n\t\tif (hasSymbols) {\n\t\t\tvar isRegExp = argument[$Symbol.match];\n\t\t\tif (typeof isRegExp !== 'undefined') {\n\t\t\t\treturn ES5.ToBoolean(isRegExp);\n\t\t\t}\n\t\t}\n\t\treturn hasRegExpMatcher(argument);\n\t},\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevalue\n\t// SameValue: ES5.SameValue,\n\n\t// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero\n\tSameValueZero: function SameValueZero(x, y) {\n\t\treturn x === y || $isNaN(x) && $isNaN(y);\n\t},\n\n\t/**\n * 7.3.2 GetV (V, P)\n * 1. Assert: IsPropertyKey(P) is true.\n * 2. Let O be ToObject(V).\n * 3. ReturnIfAbrupt(O).\n * 4. Return O.[[Get]](P, V).\n */\n\tGetV: function GetV(V, P) {\n\t\t// 7.3.2.1\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\n\t\t// 7.3.2.2-3\n\t\tvar O = this.ToObject(V);\n\n\t\t// 7.3.2.4\n\t\treturn O[P];\n\t},\n\n\t/**\n * 7.3.9 - https://ecma-international.org/ecma-262/6.0/#sec-getmethod\n * 1. Assert: IsPropertyKey(P) is true.\n * 2. Let func be GetV(O, P).\n * 3. ReturnIfAbrupt(func).\n * 4. If func is either undefined or null, return undefined.\n * 5. If IsCallable(func) is false, throw a TypeError exception.\n * 6. Return func.\n */\n\tGetMethod: function GetMethod(O, P) {\n\t\t// 7.3.9.1\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\n\t\t// 7.3.9.2\n\t\tvar func = this.GetV(O, P);\n\n\t\t// 7.3.9.4\n\t\tif (func == null) {\n\t\t\treturn void 0;\n\t\t}\n\n\t\t// 7.3.9.5\n\t\tif (!this.IsCallable(func)) {\n\t\t\tthrow new $TypeError(P + 'is not a function');\n\t\t}\n\n\t\t// 7.3.9.6\n\t\treturn func;\n\t},\n\n\t/**\n * 7.3.1 Get (O, P) - https://ecma-international.org/ecma-262/6.0/#sec-get-o-p\n * 1. Assert: Type(O) is Object.\n * 2. Assert: IsPropertyKey(P) is true.\n * 3. Return O.[[Get]](P, O).\n */\n\tGet: function Get(O, P) {\n\t\t// 7.3.1.1\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\t\t// 7.3.1.2\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\t\t// 7.3.1.3\n\t\treturn O[P];\n\t},\n\n\tType: function Type(x) {\n\t\tif ((typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'symbol') {\n\t\t\treturn 'Symbol';\n\t\t}\n\t\treturn ES5.Type(x);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor\n\tSpeciesConstructor: function SpeciesConstructor(O, defaultConstructor) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\t\tvar C = O.constructor;\n\t\tif (typeof C === 'undefined') {\n\t\t\treturn defaultConstructor;\n\t\t}\n\t\tif (this.Type(C) !== 'Object') {\n\t\t\tthrow new $TypeError('O.constructor is not an Object');\n\t\t}\n\t\tvar S = hasSymbols && $Symbol.species ? C[$Symbol.species] : void 0;\n\t\tif (S == null) {\n\t\t\treturn defaultConstructor;\n\t\t}\n\t\tif (this.IsConstructor(S)) {\n\t\t\treturn S;\n\t\t}\n\t\tthrow new $TypeError('no constructor found');\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor\n\tCompletePropertyDescriptor: function CompletePropertyDescriptor(Desc) {\n\t\tassertRecord(this, 'Property Descriptor', 'Desc', Desc);\n\n\t\tif (this.IsGenericDescriptor(Desc) || this.IsDataDescriptor(Desc)) {\n\t\t\tif (!has(Desc, '[[Value]]')) {\n\t\t\t\tDesc['[[Value]]'] = void 0;\n\t\t\t}\n\t\t\tif (!has(Desc, '[[Writable]]')) {\n\t\t\t\tDesc['[[Writable]]'] = false;\n\t\t\t}\n\t\t} else {\n\t\t\tif (!has(Desc, '[[Get]]')) {\n\t\t\t\tDesc['[[Get]]'] = void 0;\n\t\t\t}\n\t\t\tif (!has(Desc, '[[Set]]')) {\n\t\t\t\tDesc['[[Set]]'] = void 0;\n\t\t\t}\n\t\t}\n\t\tif (!has(Desc, '[[Enumerable]]')) {\n\t\t\tDesc['[[Enumerable]]'] = false;\n\t\t}\n\t\tif (!has(Desc, '[[Configurable]]')) {\n\t\t\tDesc['[[Configurable]]'] = false;\n\t\t}\n\t\treturn Desc;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-set-o-p-v-throw\n\tSet: function Set(O, P, V, Throw) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('O must be an Object');\n\t\t}\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('P must be a Property Key');\n\t\t}\n\t\tif (this.Type(Throw) !== 'Boolean') {\n\t\t\tthrow new $TypeError('Throw must be a Boolean');\n\t\t}\n\t\tif (Throw) {\n\t\t\tO[P] = V;\n\t\t\treturn true;\n\t\t} else {\n\t\t\ttry {\n\t\t\t\tO[P] = V;\n\t\t\t} catch (e) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-hasownproperty\n\tHasOwnProperty: function HasOwnProperty(O, P) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('O must be an Object');\n\t\t}\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('P must be a Property Key');\n\t\t}\n\t\treturn has(O, P);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-hasproperty\n\tHasProperty: function HasProperty(O, P) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('O must be an Object');\n\t\t}\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('P must be a Property Key');\n\t\t}\n\t\treturn P in O;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-isconcatspreadable\n\tIsConcatSpreadable: function IsConcatSpreadable(O) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\treturn false;\n\t\t}\n\t\tif (hasSymbols && _typeof($Symbol.isConcatSpreadable) === 'symbol') {\n\t\t\tvar spreadable = this.Get(O, Symbol.isConcatSpreadable);\n\t\t\tif (typeof spreadable !== 'undefined') {\n\t\t\t\treturn this.ToBoolean(spreadable);\n\t\t\t}\n\t\t}\n\t\treturn this.IsArray(O);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-invoke\n\tInvoke: function Invoke(O, P) {\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('P must be a Property Key');\n\t\t}\n\t\tvar argumentsList = arraySlice(arguments, 2);\n\t\tvar func = this.GetV(O, P);\n\t\treturn this.Call(func, O, argumentsList);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-getiterator\n\tGetIterator: function GetIterator(obj, method) {\n\t\tif (!hasSymbols) {\n\t\t\tthrow new SyntaxError('ES.GetIterator depends on native iterator support.');\n\t\t}\n\n\t\tvar actualMethod = method;\n\t\tif (arguments.length < 2) {\n\t\t\tactualMethod = this.GetMethod(obj, $Symbol.iterator);\n\t\t}\n\t\tvar iterator = this.Call(actualMethod, obj);\n\t\tif (this.Type(iterator) !== 'Object') {\n\t\t\tthrow new $TypeError('iterator must return an object');\n\t\t}\n\n\t\treturn iterator;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-iteratornext\n\tIteratorNext: function IteratorNext(iterator, value) {\n\t\tvar result = this.Invoke(iterator, 'next', arguments.length < 2 ? [] : [value]);\n\t\tif (this.Type(result) !== 'Object') {\n\t\t\tthrow new $TypeError('iterator next must return an object');\n\t\t}\n\t\treturn result;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-iteratorcomplete\n\tIteratorComplete: function IteratorComplete(iterResult) {\n\t\tif (this.Type(iterResult) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(iterResult) is not Object');\n\t\t}\n\t\treturn this.ToBoolean(this.Get(iterResult, 'done'));\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-iteratorvalue\n\tIteratorValue: function IteratorValue(iterResult) {\n\t\tif (this.Type(iterResult) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(iterResult) is not Object');\n\t\t}\n\t\treturn this.Get(iterResult, 'value');\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-iteratorstep\n\tIteratorStep: function IteratorStep(iterator) {\n\t\tvar result = this.IteratorNext(iterator);\n\t\tvar done = this.IteratorComplete(result);\n\t\treturn done === true ? false : result;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-iteratorclose\n\tIteratorClose: function IteratorClose(iterator, completion) {\n\t\tif (this.Type(iterator) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(iterator) is not Object');\n\t\t}\n\t\tif (!this.IsCallable(completion)) {\n\t\t\tthrow new $TypeError('Assertion failed: completion is not a thunk for a Completion Record');\n\t\t}\n\t\tvar completionThunk = completion;\n\n\t\tvar iteratorReturn = this.GetMethod(iterator, 'return');\n\n\t\tif (typeof iteratorReturn === 'undefined') {\n\t\t\treturn completionThunk();\n\t\t}\n\n\t\tvar completionRecord;\n\t\ttry {\n\t\t\tvar innerResult = this.Call(iteratorReturn, iterator, []);\n\t\t} catch (e) {\n\t\t\t// if we hit here, then \"e\" is the innerResult completion that needs re-throwing\n\n\t\t\t// if the completion is of type \"throw\", this will throw.\n\t\t\tcompletionRecord = completionThunk();\n\t\t\tcompletionThunk = null; // ensure it's not called twice.\n\n\t\t\t// if not, then return the innerResult completion\n\t\t\tthrow e;\n\t\t}\n\t\tcompletionRecord = completionThunk(); // if innerResult worked, then throw if the completion does\n\t\tcompletionThunk = null; // ensure it's not called twice.\n\n\t\tif (this.Type(innerResult) !== 'Object') {\n\t\t\tthrow new $TypeError('iterator .return must return an object');\n\t\t}\n\n\t\treturn completionRecord;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject\n\tCreateIterResultObject: function CreateIterResultObject(value, done) {\n\t\tif (this.Type(done) !== 'Boolean') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(done) is not Boolean');\n\t\t}\n\t\treturn {\n\t\t\tvalue: value,\n\t\t\tdone: done\n\t\t};\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-regexpexec\n\tRegExpExec: function RegExpExec(R, S) {\n\t\tif (this.Type(R) !== 'Object') {\n\t\t\tthrow new $TypeError('R must be an Object');\n\t\t}\n\t\tif (this.Type(S) !== 'String') {\n\t\t\tthrow new $TypeError('S must be a String');\n\t\t}\n\t\tvar exec = this.Get(R, 'exec');\n\t\tif (this.IsCallable(exec)) {\n\t\t\tvar result = this.Call(exec, R, [S]);\n\t\t\tif (result === null || this.Type(result) === 'Object') {\n\t\t\t\treturn result;\n\t\t\t}\n\t\t\tthrow new $TypeError('\"exec\" method must return `null` or an Object');\n\t\t}\n\t\treturn regexExec(R, S);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate\n\tArraySpeciesCreate: function ArraySpeciesCreate(originalArray, length) {\n\t\tif (!this.IsInteger(length) || length < 0) {\n\t\t\tthrow new $TypeError('Assertion failed: length must be an integer >= 0');\n\t\t}\n\t\tvar len = length === 0 ? 0 : length;\n\t\tvar C;\n\t\tvar isArray = this.IsArray(originalArray);\n\t\tif (isArray) {\n\t\t\tC = this.Get(originalArray, 'constructor');\n\t\t\t// TODO: figure out how to make a cross-realm normal Array, a same-realm Array\n\t\t\t// if (this.IsConstructor(C)) {\n\t\t\t// \tif C is another realm's Array, C = undefined\n\t\t\t// \tObject.getPrototypeOf(Object.getPrototypeOf(Object.getPrototypeOf(Array))) === null ?\n\t\t\t// }\n\t\t\tif (this.Type(C) === 'Object' && hasSymbols && $Symbol.species) {\n\t\t\t\tC = this.Get(C, $Symbol.species);\n\t\t\t\tif (C === null) {\n\t\t\t\t\tC = void 0;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (typeof C === 'undefined') {\n\t\t\treturn $Array(len);\n\t\t}\n\t\tif (!this.IsConstructor(C)) {\n\t\t\tthrow new $TypeError('C must be a constructor');\n\t\t}\n\t\treturn new C(len); // this.Construct(C, len);\n\t},\n\n\tCreateDataProperty: function CreateDataProperty(O, P, V) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\t\tvar oldDesc = $gOPD(O, P);\n\t\tvar extensible = oldDesc || typeof $isExtensible !== 'function' || $isExtensible(O);\n\t\tvar immutable = oldDesc && (!oldDesc.writable || !oldDesc.configurable);\n\t\tif (immutable || !extensible) {\n\t\t\treturn false;\n\t\t}\n\t\tvar newDesc = {\n\t\t\tconfigurable: true,\n\t\t\tenumerable: true,\n\t\t\tvalue: V,\n\t\t\twritable: true\n\t\t};\n\t\t$defineProperty(O, P, newDesc);\n\t\treturn true;\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow\n\tCreateDataPropertyOrThrow: function CreateDataPropertyOrThrow(O, P, V) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\t\tvar success = this.CreateDataProperty(O, P, V);\n\t\tif (!success) {\n\t\t\tthrow new $TypeError('unable to create data property');\n\t\t}\n\t\treturn success;\n\t},\n\n\t// https://www.ecma-international.org/ecma-262/6.0/#sec-objectcreate\n\tObjectCreate: function ObjectCreate(proto, internalSlotsList) {\n\t\tif (proto !== null && this.Type(proto) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: proto must be null or an object');\n\t\t}\n\t\tvar slots = arguments.length < 2 ? [] : internalSlotsList;\n\t\tif (slots.length > 0) {\n\t\t\tthrow new $SyntaxError('es-abstract does not yet support internal slots');\n\t\t}\n\n\t\tif (proto === null && !$ObjectCreate) {\n\t\t\tthrow new $SyntaxError('native Object.create support is required to create null objects');\n\t\t}\n\n\t\treturn $ObjectCreate(proto);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-advancestringindex\n\tAdvanceStringIndex: function AdvanceStringIndex(S, index, unicode) {\n\t\tif (this.Type(S) !== 'String') {\n\t\t\tthrow new $TypeError('S must be a String');\n\t\t}\n\t\tif (!this.IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {\n\t\t\tthrow new $TypeError('Assertion failed: length must be an integer >= 0 and <= 2**53');\n\t\t}\n\t\tif (this.Type(unicode) !== 'Boolean') {\n\t\t\tthrow new $TypeError('Assertion failed: unicode must be a Boolean');\n\t\t}\n\t\tif (!unicode) {\n\t\t\treturn index + 1;\n\t\t}\n\t\tvar length = S.length;\n\t\tif (index + 1 >= length) {\n\t\t\treturn index + 1;\n\t\t}\n\n\t\tvar first = $charCodeAt(S, index);\n\t\tif (first < 0xD800 || first > 0xDBFF) {\n\t\t\treturn index + 1;\n\t\t}\n\n\t\tvar second = $charCodeAt(S, index + 1);\n\t\tif (second < 0xDC00 || second > 0xDFFF) {\n\t\t\treturn index + 1;\n\t\t}\n\n\t\treturn index + 2;\n\t},\n\n\t// https://www.ecma-international.org/ecma-262/6.0/#sec-createmethodproperty\n\tCreateMethodProperty: function CreateMethodProperty(O, P, V) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\n\t\tvar newDesc = {\n\t\t\tconfigurable: true,\n\t\t\tenumerable: false,\n\t\t\tvalue: V,\n\t\t\twritable: true\n\t\t};\n\t\treturn !!$defineProperty(O, P, newDesc);\n\t},\n\n\t// https://www.ecma-international.org/ecma-262/6.0/#sec-definepropertyorthrow\n\tDefinePropertyOrThrow: function DefinePropertyOrThrow(O, P, desc) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\n\t\treturn !!$defineProperty(O, P, desc);\n\t},\n\n\t// https://www.ecma-international.org/ecma-262/6.0/#sec-deletepropertyorthrow\n\tDeletePropertyOrThrow: function DeletePropertyOrThrow(O, P) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\n\t\tif (!this.IsPropertyKey(P)) {\n\t\t\tthrow new $TypeError('Assertion failed: IsPropertyKey(P) is not true');\n\t\t}\n\n\t\tvar success = delete O[P];\n\t\tif (!success) {\n\t\t\tthrow new TypeError('Attempt to delete property failed.');\n\t\t}\n\t\treturn success;\n\t},\n\n\t// https://www.ecma-international.org/ecma-262/6.0/#sec-enumerableownnames\n\tEnumerableOwnNames: function EnumerableOwnNames(O) {\n\t\tif (this.Type(O) !== 'Object') {\n\t\t\tthrow new $TypeError('Assertion failed: Type(O) is not Object');\n\t\t}\n\n\t\treturn keys(O);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-number-prototype-object\n\tthisNumberValue: function thisNumberValue(value) {\n\t\tif (this.Type(value) === 'Number') {\n\t\t\treturn value;\n\t\t}\n\n\t\treturn $NumberValueOf(value);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-boolean-prototype-object\n\tthisBooleanValue: function thisBooleanValue(value) {\n\t\tif (this.Type(value) === 'Boolean') {\n\t\t\treturn value;\n\t\t}\n\n\t\treturn $BooleanValueOf(value);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-string-prototype-object\n\tthisStringValue: function thisStringValue(value) {\n\t\tif (this.Type(value) === 'String') {\n\t\t\treturn value;\n\t\t}\n\n\t\treturn $StringValueOf(value);\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-date-prototype-object\n\tthisTimeValue: function thisTimeValue(value) {\n\t\treturn $DateValueOf(value);\n\t}\n});\n\ndelete ES6.CheckObjectCoercible; // renamed in ES6 to RequireObjectCoercible\n\nmodule.exports = ES6;\n\n/***/ }),\n/* 38 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar GetIntrinsic = __webpack_require__(6);\n\nvar $Object = GetIntrinsic('%Object%');\nvar $TypeError = GetIntrinsic('%TypeError%');\nvar $String = GetIntrinsic('%String%');\n\nvar assertRecord = __webpack_require__(18);\nvar $isNaN = __webpack_require__(20);\nvar $isFinite = __webpack_require__(19);\n\nvar sign = __webpack_require__(22);\nvar mod = __webpack_require__(21);\n\nvar IsCallable = __webpack_require__(8);\nvar toPrimitive = __webpack_require__(42);\n\nvar has = __webpack_require__(3);\n\n// https://es5.github.io/#x9\nvar ES5 = {\n\tToPrimitive: toPrimitive,\n\n\tToBoolean: function ToBoolean(value) {\n\t\treturn !!value;\n\t},\n\tToNumber: function ToNumber(value) {\n\t\treturn +value; // eslint-disable-line no-implicit-coercion\n\t},\n\tToInteger: function ToInteger(value) {\n\t\tvar number = this.ToNumber(value);\n\t\tif ($isNaN(number)) {\n\t\t\treturn 0;\n\t\t}\n\t\tif (number === 0 || !$isFinite(number)) {\n\t\t\treturn number;\n\t\t}\n\t\treturn sign(number) * Math.floor(Math.abs(number));\n\t},\n\tToInt32: function ToInt32(x) {\n\t\treturn this.ToNumber(x) >> 0;\n\t},\n\tToUint32: function ToUint32(x) {\n\t\treturn this.ToNumber(x) >>> 0;\n\t},\n\tToUint16: function ToUint16(value) {\n\t\tvar number = this.ToNumber(value);\n\t\tif ($isNaN(number) || number === 0 || !$isFinite(number)) {\n\t\t\treturn 0;\n\t\t}\n\t\tvar posInt = sign(number) * Math.floor(Math.abs(number));\n\t\treturn mod(posInt, 0x10000);\n\t},\n\tToString: function ToString(value) {\n\t\treturn $String(value);\n\t},\n\tToObject: function ToObject(value) {\n\t\tthis.CheckObjectCoercible(value);\n\t\treturn $Object(value);\n\t},\n\tCheckObjectCoercible: function CheckObjectCoercible(value, optMessage) {\n\t\t/* jshint eqnull:true */\n\t\tif (value == null) {\n\t\t\tthrow new $TypeError(optMessage || 'Cannot call method on ' + value);\n\t\t}\n\t\treturn value;\n\t},\n\tIsCallable: IsCallable,\n\tSameValue: function SameValue(x, y) {\n\t\tif (x === y) {\n\t\t\t// 0 === -0, but they are not identical.\n\t\t\tif (x === 0) {\n\t\t\t\treturn 1 / x === 1 / y;\n\t\t\t}\n\t\t\treturn true;\n\t\t}\n\t\treturn $isNaN(x) && $isNaN(y);\n\t},\n\n\t// https://www.ecma-international.org/ecma-262/5.1/#sec-8\n\tType: function Type(x) {\n\t\tif (x === null) {\n\t\t\treturn 'Null';\n\t\t}\n\t\tif (typeof x === 'undefined') {\n\t\t\treturn 'Undefined';\n\t\t}\n\t\tif (typeof x === 'function' || (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object') {\n\t\t\treturn 'Object';\n\t\t}\n\t\tif (typeof x === 'number') {\n\t\t\treturn 'Number';\n\t\t}\n\t\tif (typeof x === 'boolean') {\n\t\t\treturn 'Boolean';\n\t\t}\n\t\tif (typeof x === 'string') {\n\t\t\treturn 'String';\n\t\t}\n\t},\n\n\t// https://ecma-international.org/ecma-262/6.0/#sec-property-descriptor-specification-type\n\tIsPropertyDescriptor: function IsPropertyDescriptor(Desc) {\n\t\tif (this.Type(Desc) !== 'Object') {\n\t\t\treturn false;\n\t\t}\n\t\tvar allowed = {\n\t\t\t'[[Configurable]]': true,\n\t\t\t'[[Enumerable]]': true,\n\t\t\t'[[Get]]': true,\n\t\t\t'[[Set]]': true,\n\t\t\t'[[Value]]': true,\n\t\t\t'[[Writable]]': true\n\t\t};\n\n\t\tfor (var key in Desc) {\n\t\t\t// eslint-disable-line\n\t\t\tif (has(Desc, key) && !allowed[key]) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\tvar isData = has(Desc, '[[Value]]');\n\t\tvar IsAccessor = has(Desc, '[[Get]]') || has(Desc, '[[Set]]');\n\t\tif (isData && IsAccessor) {\n\t\t\tthrow new $TypeError('Property Descriptors may not be both accessor and data descriptors');\n\t\t}\n\t\treturn true;\n\t},\n\n\t// https://ecma-international.org/ecma-262/5.1/#sec-8.10.1\n\tIsAccessorDescriptor: function IsAccessorDescriptor(Desc) {\n\t\tif (typeof Desc === 'undefined') {\n\t\t\treturn false;\n\t\t}\n\n\t\tassertRecord(this, 'Property Descriptor', 'Desc', Desc);\n\n\t\tif (!has(Desc, '[[Get]]') && !has(Desc, '[[Set]]')) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t},\n\n\t// https://ecma-international.org/ecma-262/5.1/#sec-8.10.2\n\tIsDataDescriptor: function IsDataDescriptor(Desc) {\n\t\tif (typeof Desc === 'undefined') {\n\t\t\treturn false;\n\t\t}\n\n\t\tassertRecord(this, 'Property Descriptor', 'Desc', Desc);\n\n\t\tif (!has(Desc, '[[Value]]') && !has(Desc, '[[Writable]]')) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t},\n\n\t// https://ecma-international.org/ecma-262/5.1/#sec-8.10.3\n\tIsGenericDescriptor: function IsGenericDescriptor(Desc) {\n\t\tif (typeof Desc === 'undefined') {\n\t\t\treturn false;\n\t\t}\n\n\t\tassertRecord(this, 'Property Descriptor', 'Desc', Desc);\n\n\t\tif (!this.IsAccessorDescriptor(Desc) && !this.IsDataDescriptor(Desc)) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t},\n\n\t// https://ecma-international.org/ecma-262/5.1/#sec-8.10.4\n\tFromPropertyDescriptor: function FromPropertyDescriptor(Desc) {\n\t\tif (typeof Desc === 'undefined') {\n\t\t\treturn Desc;\n\t\t}\n\n\t\tassertRecord(this, 'Property Descriptor', 'Desc', Desc);\n\n\t\tif (this.IsDataDescriptor(Desc)) {\n\t\t\treturn {\n\t\t\t\tvalue: Desc['[[Value]]'],\n\t\t\t\twritable: !!Desc['[[Writable]]'],\n\t\t\t\tenumerable: !!Desc['[[Enumerable]]'],\n\t\t\t\tconfigurable: !!Desc['[[Configurable]]']\n\t\t\t};\n\t\t} else if (this.IsAccessorDescriptor(Desc)) {\n\t\t\treturn {\n\t\t\t\tget: Desc['[[Get]]'],\n\t\t\t\tset: Desc['[[Set]]'],\n\t\t\t\tenumerable: !!Desc['[[Enumerable]]'],\n\t\t\t\tconfigurable: !!Desc['[[Configurable]]']\n\t\t\t};\n\t\t} else {\n\t\t\tthrow new $TypeError('FromPropertyDescriptor must be called with a fully populated Property Descriptor');\n\t\t}\n\t},\n\n\t// https://ecma-international.org/ecma-262/5.1/#sec-8.10.5\n\tToPropertyDescriptor: function ToPropertyDescriptor(Obj) {\n\t\tif (this.Type(Obj) !== 'Object') {\n\t\t\tthrow new $TypeError('ToPropertyDescriptor requires an object');\n\t\t}\n\n\t\tvar desc = {};\n\t\tif (has(Obj, 'enumerable')) {\n\t\t\tdesc['[[Enumerable]]'] = this.ToBoolean(Obj.enumerable);\n\t\t}\n\t\tif (has(Obj, 'configurable')) {\n\t\t\tdesc['[[Configurable]]'] = this.ToBoolean(Obj.configurable);\n\t\t}\n\t\tif (has(Obj, 'value')) {\n\t\t\tdesc['[[Value]]'] = Obj.value;\n\t\t}\n\t\tif (has(Obj, 'writable')) {\n\t\t\tdesc['[[Writable]]'] = this.ToBoolean(Obj.writable);\n\t\t}\n\t\tif (has(Obj, 'get')) {\n\t\t\tvar getter = Obj.get;\n\t\t\tif (typeof getter !== 'undefined' && !this.IsCallable(getter)) {\n\t\t\t\tthrow new TypeError('getter must be a function');\n\t\t\t}\n\t\t\tdesc['[[Get]]'] = getter;\n\t\t}\n\t\tif (has(Obj, 'set')) {\n\t\t\tvar setter = Obj.set;\n\t\t\tif (typeof setter !== 'undefined' && !this.IsCallable(setter)) {\n\t\t\t\tthrow new $TypeError('setter must be a function');\n\t\t\t}\n\t\t\tdesc['[[Set]]'] = setter;\n\t\t}\n\n\t\tif ((has(desc, '[[Get]]') || has(desc, '[[Set]]')) && (has(desc, '[[Value]]') || has(desc, '[[Writable]]'))) {\n\t\t\tthrow new $TypeError('Invalid property descriptor. Cannot both specify accessors and a value or writable attribute');\n\t\t}\n\t\treturn desc;\n\t}\n};\n\nmodule.exports = ES5;\n\n/***/ }),\n/* 39 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar bind = __webpack_require__(7);\nvar has = bind.call(Function.call, Object.prototype.hasOwnProperty);\n\nvar $assign = Object.assign;\n\nmodule.exports = function assign(target, source) {\n\tif ($assign) {\n\t\treturn $assign(target, source);\n\t}\n\n\tfor (var key in source) {\n\t\tif (has(source, key)) {\n\t\t\ttarget[key] = source[key];\n\t\t}\n\t}\n\treturn target;\n};\n\n/***/ }),\n/* 40 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nmodule.exports = function isPrimitive(value) {\n\treturn value === null || typeof value !== 'function' && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) !== 'object';\n};\n\n/***/ }),\n/* 41 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar hasSymbols = typeof Symbol === 'function' && _typeof(Symbol.iterator) === 'symbol';\n\nvar isPrimitive = __webpack_require__(23);\nvar isCallable = __webpack_require__(8);\nvar isDate = __webpack_require__(49);\nvar isSymbol = __webpack_require__(51);\n\nvar ordinaryToPrimitive = function OrdinaryToPrimitive(O, hint) {\n\tif (typeof O === 'undefined' || O === null) {\n\t\tthrow new TypeError('Cannot call method on ' + O);\n\t}\n\tif (typeof hint !== 'string' || hint !== 'number' && hint !== 'string') {\n\t\tthrow new TypeError('hint must be \"string\" or \"number\"');\n\t}\n\tvar methodNames = hint === 'string' ? ['toString', 'valueOf'] : ['valueOf', 'toString'];\n\tvar method, result, i;\n\tfor (i = 0; i < methodNames.length; ++i) {\n\t\tmethod = O[methodNames[i]];\n\t\tif (isCallable(method)) {\n\t\t\tresult = method.call(O);\n\t\t\tif (isPrimitive(result)) {\n\t\t\t\treturn result;\n\t\t\t}\n\t\t}\n\t}\n\tthrow new TypeError('No default value');\n};\n\nvar GetMethod = function GetMethod(O, P) {\n\tvar func = O[P];\n\tif (func !== null && typeof func !== 'undefined') {\n\t\tif (!isCallable(func)) {\n\t\t\tthrow new TypeError(func + ' returned for property ' + P + ' of object ' + O + ' is not a function');\n\t\t}\n\t\treturn func;\n\t}\n\treturn void 0;\n};\n\n// http://www.ecma-international.org/ecma-262/6.0/#sec-toprimitive\nmodule.exports = function ToPrimitive(input) {\n\tif (isPrimitive(input)) {\n\t\treturn input;\n\t}\n\tvar hint = 'default';\n\tif (arguments.length > 1) {\n\t\tif (arguments[1] === String) {\n\t\t\thint = 'string';\n\t\t} else if (arguments[1] === Number) {\n\t\t\thint = 'number';\n\t\t}\n\t}\n\n\tvar exoticToPrim;\n\tif (hasSymbols) {\n\t\tif (Symbol.toPrimitive) {\n\t\t\texoticToPrim = GetMethod(input, Symbol.toPrimitive);\n\t\t} else if (isSymbol(input)) {\n\t\t\texoticToPrim = Symbol.prototype.valueOf;\n\t\t}\n\t}\n\tif (typeof exoticToPrim !== 'undefined') {\n\t\tvar result = exoticToPrim.call(input, hint);\n\t\tif (isPrimitive(result)) {\n\t\t\treturn result;\n\t\t}\n\t\tthrow new TypeError('unable to convert exotic object to primitive');\n\t}\n\tif (hint === 'default' && (isDate(input) || isSymbol(input))) {\n\t\thint = 'string';\n\t}\n\treturn ordinaryToPrimitive(input, hint === 'default' ? 'number' : hint);\n};\n\n/***/ }),\n/* 42 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar toStr = Object.prototype.toString;\n\nvar isPrimitive = __webpack_require__(23);\n\nvar isCallable = __webpack_require__(8);\n\n// http://ecma-international.org/ecma-262/5.1/#sec-8.12.8\nvar ES5internalSlots = {\n\t'[[DefaultValue]]': function DefaultValue(O) {\n\t\tvar actualHint;\n\t\tif (arguments.length > 1) {\n\t\t\tactualHint = arguments[1];\n\t\t} else {\n\t\t\tactualHint = toStr.call(O) === '[object Date]' ? String : Number;\n\t\t}\n\n\t\tif (actualHint === String || actualHint === Number) {\n\t\t\tvar methods = actualHint === String ? ['toString', 'valueOf'] : ['valueOf', 'toString'];\n\t\t\tvar value, i;\n\t\t\tfor (i = 0; i < methods.length; ++i) {\n\t\t\t\tif (isCallable(O[methods[i]])) {\n\t\t\t\t\tvalue = O[methods[i]]();\n\t\t\t\t\tif (isPrimitive(value)) {\n\t\t\t\t\t\treturn value;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tthrow new TypeError('No default value');\n\t\t}\n\t\tthrow new TypeError('invalid [[DefaultValue]] hint supplied');\n\t}\n};\n\n// http://ecma-international.org/ecma-262/5.1/#sec-9.1\nmodule.exports = function ToPrimitive(input) {\n\tif (isPrimitive(input)) {\n\t\treturn input;\n\t}\n\tif (arguments.length > 1) {\n\t\treturn ES5internalSlots['[[DefaultValue]]'](input, arguments[1]);\n\t}\n\treturn ES5internalSlots['[[DefaultValue]]'](input);\n};\n\n/***/ }),\n/* 43 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nmodule.exports = __webpack_require__(41);\n\n/***/ }),\n/* 44 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n/* WEBPACK VAR INJECTION */(function(process, global) {var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\n/*!\n * @overview es6-promise - a tiny implementation of Promises/A+.\n * @copyright Copyright (c) 2014 Yehuda Katz, Tom Dale, Stefan Penner and contributors (Conversion to ES6 API by Jake Archibald)\n * @license Licensed under MIT license\n * See https://raw.githubusercontent.com/stefanpenner/es6-promise/master/LICENSE\n * @version v4.2.6+9869a4bc\n */\n\n(function (global, factory) {\n ( false ? 'undefined' : _typeof(exports)) === 'object' && typeof module !== 'undefined' ? module.exports = factory() : true ? !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),\n\t\t\t\t__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?\n\t\t\t\t(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :\n\t\t\t\t__WEBPACK_AMD_DEFINE_FACTORY__),\n\t\t\t\t__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)) : global.ES6Promise = factory();\n})(undefined, function () {\n 'use strict';\n\n function objectOrFunction(x) {\n var type = typeof x === 'undefined' ? 'undefined' : _typeof(x);\n return x !== null && (type === 'object' || type === 'function');\n }\n\n function isFunction(x) {\n return typeof x === 'function';\n }\n\n var _isArray = void 0;\n if (Array.isArray) {\n _isArray = Array.isArray;\n } else {\n _isArray = function _isArray(x) {\n return Object.prototype.toString.call(x) === '[object Array]';\n };\n }\n\n var isArray = _isArray;\n\n var len = 0;\n var vertxNext = void 0;\n var customSchedulerFn = void 0;\n\n var asap = function asap(callback, arg) {\n queue[len] = callback;\n queue[len + 1] = arg;\n len += 2;\n if (len === 2) {\n // If len is 2, that means that we need to schedule an async flush.\n // If additional callbacks are queued before the queue is flushed, they\n // will be processed by this flush that we are scheduling.\n if (customSchedulerFn) {\n customSchedulerFn(flush);\n } else {\n scheduleFlush();\n }\n }\n };\n\n function setScheduler(scheduleFn) {\n customSchedulerFn = scheduleFn;\n }\n\n function setAsap(asapFn) {\n asap = asapFn;\n }\n\n var browserWindow = typeof window !== 'undefined' ? window : undefined;\n var browserGlobal = browserWindow || {};\n var BrowserMutationObserver = browserGlobal.MutationObserver || browserGlobal.WebKitMutationObserver;\n var isNode = typeof self === 'undefined' && typeof process !== 'undefined' && {}.toString.call(process) === '[object process]';\n\n // test for web worker but not in IE10\n var isWorker = typeof Uint8ClampedArray !== 'undefined' && typeof importScripts !== 'undefined' && typeof MessageChannel !== 'undefined';\n\n // node\n function useNextTick() {\n // node version 0.10.x displays a deprecation warning when nextTick is used recursively\n // see https://github.com/cujojs/when/issues/410 for details\n return function () {\n return process.nextTick(flush);\n };\n }\n\n // vertx\n function useVertxTimer() {\n if (typeof vertxNext !== 'undefined') {\n return function () {\n vertxNext(flush);\n };\n }\n\n return useSetTimeout();\n }\n\n function useMutationObserver() {\n var iterations = 0;\n var observer = new BrowserMutationObserver(flush);\n var node = document.createTextNode('');\n observer.observe(node, { characterData: true });\n\n return function () {\n node.data = iterations = ++iterations % 2;\n };\n }\n\n // web worker\n function useMessageChannel() {\n var channel = new MessageChannel();\n channel.port1.onmessage = flush;\n return function () {\n return channel.port2.postMessage(0);\n };\n }\n\n function useSetTimeout() {\n // Store setTimeout reference so es6-promise will be unaffected by\n // other code modifying setTimeout (like sinon.useFakeTimers())\n var globalSetTimeout = setTimeout;\n return function () {\n return globalSetTimeout(flush, 1);\n };\n }\n\n var queue = new Array(1000);\n function flush() {\n for (var i = 0; i < len; i += 2) {\n var callback = queue[i];\n var arg = queue[i + 1];\n\n callback(arg);\n\n queue[i] = undefined;\n queue[i + 1] = undefined;\n }\n\n len = 0;\n }\n\n function attemptVertx() {\n try {\n var vertx = Function('return this')().require('vertx');\n vertxNext = vertx.runOnLoop || vertx.runOnContext;\n return useVertxTimer();\n } catch (e) {\n return useSetTimeout();\n }\n }\n\n var scheduleFlush = void 0;\n // Decide what async method to use to triggering processing of queued callbacks:\n if (isNode) {\n scheduleFlush = useNextTick();\n } else if (BrowserMutationObserver) {\n scheduleFlush = useMutationObserver();\n } else if (isWorker) {\n scheduleFlush = useMessageChannel();\n } else if (browserWindow === undefined && \"function\" === 'function') {\n scheduleFlush = attemptVertx();\n } else {\n scheduleFlush = useSetTimeout();\n }\n\n function then(onFulfillment, onRejection) {\n var parent = this;\n\n var child = new this.constructor(noop);\n\n if (child[PROMISE_ID] === undefined) {\n makePromise(child);\n }\n\n var _state = parent._state;\n\n if (_state) {\n var callback = arguments[_state - 1];\n asap(function () {\n return invokeCallback(_state, child, callback, parent._result);\n });\n } else {\n subscribe(parent, child, onFulfillment, onRejection);\n }\n\n return child;\n }\n\n /**\n `Promise.resolve` returns a promise that will become resolved with the\n passed `value`. It is shorthand for the following:\n \n ```javascript\n let promise = new Promise(function(resolve, reject){\n resolve(1);\n });\n \n promise.then(function(value){\n // value === 1\n });\n ```\n \n Instead of writing the above, your code now simply becomes the following:\n \n ```javascript\n let promise = Promise.resolve(1);\n \n promise.then(function(value){\n // value === 1\n });\n ```\n \n @method resolve\n @static\n @param {Any} value value that the returned promise will be resolved with\n Useful for tooling.\n @return {Promise} a promise that will become fulfilled with the given\n `value`\n */\n function resolve$1(object) {\n /*jshint validthis:true */\n var Constructor = this;\n\n if (object && (typeof object === 'undefined' ? 'undefined' : _typeof(object)) === 'object' && object.constructor === Constructor) {\n return object;\n }\n\n var promise = new Constructor(noop);\n resolve(promise, object);\n return promise;\n }\n\n var PROMISE_ID = Math.random().toString(36).substring(2);\n\n function noop() {}\n\n var PENDING = void 0;\n var FULFILLED = 1;\n var REJECTED = 2;\n\n var TRY_CATCH_ERROR = { error: null };\n\n function selfFulfillment() {\n return new TypeError(\"You cannot resolve a promise with itself\");\n }\n\n function cannotReturnOwn() {\n return new TypeError('A promises callback cannot return that same promise.');\n }\n\n function getThen(promise) {\n try {\n return promise.then;\n } catch (error) {\n TRY_CATCH_ERROR.error = error;\n return TRY_CATCH_ERROR;\n }\n }\n\n function tryThen(then$$1, value, fulfillmentHandler, rejectionHandler) {\n try {\n then$$1.call(value, fulfillmentHandler, rejectionHandler);\n } catch (e) {\n return e;\n }\n }\n\n function handleForeignThenable(promise, thenable, then$$1) {\n asap(function (promise) {\n var sealed = false;\n var error = tryThen(then$$1, thenable, function (value) {\n if (sealed) {\n return;\n }\n sealed = true;\n if (thenable !== value) {\n resolve(promise, value);\n } else {\n fulfill(promise, value);\n }\n }, function (reason) {\n if (sealed) {\n return;\n }\n sealed = true;\n\n reject(promise, reason);\n }, 'Settle: ' + (promise._label || ' unknown promise'));\n\n if (!sealed && error) {\n sealed = true;\n reject(promise, error);\n }\n }, promise);\n }\n\n function handleOwnThenable(promise, thenable) {\n if (thenable._state === FULFILLED) {\n fulfill(promise, thenable._result);\n } else if (thenable._state === REJECTED) {\n reject(promise, thenable._result);\n } else {\n subscribe(thenable, undefined, function (value) {\n return resolve(promise, value);\n }, function (reason) {\n return reject(promise, reason);\n });\n }\n }\n\n function handleMaybeThenable(promise, maybeThenable, then$$1) {\n if (maybeThenable.constructor === promise.constructor && then$$1 === then && maybeThenable.constructor.resolve === resolve$1) {\n handleOwnThenable(promise, maybeThenable);\n } else {\n if (then$$1 === TRY_CATCH_ERROR) {\n reject(promise, TRY_CATCH_ERROR.error);\n TRY_CATCH_ERROR.error = null;\n } else if (then$$1 === undefined) {\n fulfill(promise, maybeThenable);\n } else if (isFunction(then$$1)) {\n handleForeignThenable(promise, maybeThenable, then$$1);\n } else {\n fulfill(promise, maybeThenable);\n }\n }\n }\n\n function resolve(promise, value) {\n if (promise === value) {\n reject(promise, selfFulfillment());\n } else if (objectOrFunction(value)) {\n handleMaybeThenable(promise, value, getThen(value));\n } else {\n fulfill(promise, value);\n }\n }\n\n function publishRejection(promise) {\n if (promise._onerror) {\n promise._onerror(promise._result);\n }\n\n publish(promise);\n }\n\n function fulfill(promise, value) {\n if (promise._state !== PENDING) {\n return;\n }\n\n promise._result = value;\n promise._state = FULFILLED;\n\n if (promise._subscribers.length !== 0) {\n asap(publish, promise);\n }\n }\n\n function reject(promise, reason) {\n if (promise._state !== PENDING) {\n return;\n }\n promise._state = REJECTED;\n promise._result = reason;\n\n asap(publishRejection, promise);\n }\n\n function subscribe(parent, child, onFulfillment, onRejection) {\n var _subscribers = parent._subscribers;\n var length = _subscribers.length;\n\n parent._onerror = null;\n\n _subscribers[length] = child;\n _subscribers[length + FULFILLED] = onFulfillment;\n _subscribers[length + REJECTED] = onRejection;\n\n if (length === 0 && parent._state) {\n asap(publish, parent);\n }\n }\n\n function publish(promise) {\n var subscribers = promise._subscribers;\n var settled = promise._state;\n\n if (subscribers.length === 0) {\n return;\n }\n\n var child = void 0,\n callback = void 0,\n detail = promise._result;\n\n for (var i = 0; i < subscribers.length; i += 3) {\n child = subscribers[i];\n callback = subscribers[i + settled];\n\n if (child) {\n invokeCallback(settled, child, callback, detail);\n } else {\n callback(detail);\n }\n }\n\n promise._subscribers.length = 0;\n }\n\n function tryCatch(callback, detail) {\n try {\n return callback(detail);\n } catch (e) {\n TRY_CATCH_ERROR.error = e;\n return TRY_CATCH_ERROR;\n }\n }\n\n function invokeCallback(settled, promise, callback, detail) {\n var hasCallback = isFunction(callback),\n value = void 0,\n error = void 0,\n succeeded = void 0,\n failed = void 0;\n\n if (hasCallback) {\n value = tryCatch(callback, detail);\n\n if (value === TRY_CATCH_ERROR) {\n failed = true;\n error = value.error;\n value.error = null;\n } else {\n succeeded = true;\n }\n\n if (promise === value) {\n reject(promise, cannotReturnOwn());\n return;\n }\n } else {\n value = detail;\n succeeded = true;\n }\n\n if (promise._state !== PENDING) {\n // noop\n } else if (hasCallback && succeeded) {\n resolve(promise, value);\n } else if (failed) {\n reject(promise, error);\n } else if (settled === FULFILLED) {\n fulfill(promise, value);\n } else if (settled === REJECTED) {\n reject(promise, value);\n }\n }\n\n function initializePromise(promise, resolver) {\n try {\n resolver(function resolvePromise(value) {\n resolve(promise, value);\n }, function rejectPromise(reason) {\n reject(promise, reason);\n });\n } catch (e) {\n reject(promise, e);\n }\n }\n\n var id = 0;\n function nextId() {\n return id++;\n }\n\n function makePromise(promise) {\n promise[PROMISE_ID] = id++;\n promise._state = undefined;\n promise._result = undefined;\n promise._subscribers = [];\n }\n\n function validationError() {\n return new Error('Array Methods must be provided an Array');\n }\n\n var Enumerator = function () {\n function Enumerator(Constructor, input) {\n this._instanceConstructor = Constructor;\n this.promise = new Constructor(noop);\n\n if (!this.promise[PROMISE_ID]) {\n makePromise(this.promise);\n }\n\n if (isArray(input)) {\n this.length = input.length;\n this._remaining = input.length;\n\n this._result = new Array(this.length);\n\n if (this.length === 0) {\n fulfill(this.promise, this._result);\n } else {\n this.length = this.length || 0;\n this._enumerate(input);\n if (this._remaining === 0) {\n fulfill(this.promise, this._result);\n }\n }\n } else {\n reject(this.promise, validationError());\n }\n }\n\n Enumerator.prototype._enumerate = function _enumerate(input) {\n for (var i = 0; this._state === PENDING && i < input.length; i++) {\n this._eachEntry(input[i], i);\n }\n };\n\n Enumerator.prototype._eachEntry = function _eachEntry(entry, i) {\n var c = this._instanceConstructor;\n var resolve$$1 = c.resolve;\n\n if (resolve$$1 === resolve$1) {\n var _then = getThen(entry);\n\n if (_then === then && entry._state !== PENDING) {\n this._settledAt(entry._state, i, entry._result);\n } else if (typeof _then !== 'function') {\n this._remaining--;\n this._result[i] = entry;\n } else if (c === Promise$1) {\n var promise = new c(noop);\n handleMaybeThenable(promise, entry, _then);\n this._willSettleAt(promise, i);\n } else {\n this._willSettleAt(new c(function (resolve$$1) {\n return resolve$$1(entry);\n }), i);\n }\n } else {\n this._willSettleAt(resolve$$1(entry), i);\n }\n };\n\n Enumerator.prototype._settledAt = function _settledAt(state, i, value) {\n var promise = this.promise;\n\n if (promise._state === PENDING) {\n this._remaining--;\n\n if (state === REJECTED) {\n reject(promise, value);\n } else {\n this._result[i] = value;\n }\n }\n\n if (this._remaining === 0) {\n fulfill(promise, this._result);\n }\n };\n\n Enumerator.prototype._willSettleAt = function _willSettleAt(promise, i) {\n var enumerator = this;\n\n subscribe(promise, undefined, function (value) {\n return enumerator._settledAt(FULFILLED, i, value);\n }, function (reason) {\n return enumerator._settledAt(REJECTED, i, reason);\n });\n };\n\n return Enumerator;\n }();\n\n /**\n `Promise.all` accepts an array of promises, and returns a new promise which\n is fulfilled with an array of fulfillment values for the passed promises, or\n rejected with the reason of the first passed promise to be rejected. It casts all\n elements of the passed iterable to promises as it runs this algorithm.\n \n Example:\n \n ```javascript\n let promise1 = resolve(1);\n let promise2 = resolve(2);\n let promise3 = resolve(3);\n let promises = [ promise1, promise2, promise3 ];\n \n Promise.all(promises).then(function(array){\n // The array here would be [ 1, 2, 3 ];\n });\n ```\n \n If any of the `promises` given to `all` are rejected, the first promise\n that is rejected will be given as an argument to the returned promises's\n rejection handler. For example:\n \n Example:\n \n ```javascript\n let promise1 = resolve(1);\n let promise2 = reject(new Error(\"2\"));\n let promise3 = reject(new Error(\"3\"));\n let promises = [ promise1, promise2, promise3 ];\n \n Promise.all(promises).then(function(array){\n // Code here never runs because there are rejected promises!\n }, function(error) {\n // error.message === \"2\"\n });\n ```\n \n @method all\n @static\n @param {Array} entries array of promises\n @param {String} label optional string for labeling the promise.\n Useful for tooling.\n @return {Promise} promise that is fulfilled when all `promises` have been\n fulfilled, or rejected if any of them become rejected.\n @static\n */\n function all(entries) {\n return new Enumerator(this, entries).promise;\n }\n\n /**\n `Promise.race` returns a new promise which is settled in the same way as the\n first passed promise to settle.\n \n Example:\n \n ```javascript\n let promise1 = new Promise(function(resolve, reject){\n setTimeout(function(){\n resolve('promise 1');\n }, 200);\n });\n \n let promise2 = new Promise(function(resolve, reject){\n setTimeout(function(){\n resolve('promise 2');\n }, 100);\n });\n \n Promise.race([promise1, promise2]).then(function(result){\n // result === 'promise 2' because it was resolved before promise1\n // was resolved.\n });\n ```\n \n `Promise.race` is deterministic in that only the state of the first\n settled promise matters. For example, even if other promises given to the\n `promises` array argument are resolved, but the first settled promise has\n become rejected before the other promises became fulfilled, the returned\n promise will become rejected:\n \n ```javascript\n let promise1 = new Promise(function(resolve, reject){\n setTimeout(function(){\n resolve('promise 1');\n }, 200);\n });\n \n let promise2 = new Promise(function(resolve, reject){\n setTimeout(function(){\n reject(new Error('promise 2'));\n }, 100);\n });\n \n Promise.race([promise1, promise2]).then(function(result){\n // Code here never runs\n }, function(reason){\n // reason.message === 'promise 2' because promise 2 became rejected before\n // promise 1 became fulfilled\n });\n ```\n \n An example real-world use case is implementing timeouts:\n \n ```javascript\n Promise.race([ajax('foo.json'), timeout(5000)])\n ```\n \n @method race\n @static\n @param {Array} promises array of promises to observe\n Useful for tooling.\n @return {Promise} a promise which settles in the same way as the first passed\n promise to settle.\n */\n function race(entries) {\n /*jshint validthis:true */\n var Constructor = this;\n\n if (!isArray(entries)) {\n return new Constructor(function (_, reject) {\n return reject(new TypeError('You must pass an array to race.'));\n });\n } else {\n return new Constructor(function (resolve, reject) {\n var length = entries.length;\n for (var i = 0; i < length; i++) {\n Constructor.resolve(entries[i]).then(resolve, reject);\n }\n });\n }\n }\n\n /**\n `Promise.reject` returns a promise rejected with the passed `reason`.\n It is shorthand for the following:\n \n ```javascript\n let promise = new Promise(function(resolve, reject){\n reject(new Error('WHOOPS'));\n });\n \n promise.then(function(value){\n // Code here doesn't run because the promise is rejected!\n }, function(reason){\n // reason.message === 'WHOOPS'\n });\n ```\n \n Instead of writing the above, your code now simply becomes the following:\n \n ```javascript\n let promise = Promise.reject(new Error('WHOOPS'));\n \n promise.then(function(value){\n // Code here doesn't run because the promise is rejected!\n }, function(reason){\n // reason.message === 'WHOOPS'\n });\n ```\n \n @method reject\n @static\n @param {Any} reason value that the returned promise will be rejected with.\n Useful for tooling.\n @return {Promise} a promise rejected with the given `reason`.\n */\n function reject$1(reason) {\n /*jshint validthis:true */\n var Constructor = this;\n var promise = new Constructor(noop);\n reject(promise, reason);\n return promise;\n }\n\n function needsResolver() {\n throw new TypeError('You must pass a resolver function as the first argument to the promise constructor');\n }\n\n function needsNew() {\n throw new TypeError(\"Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function.\");\n }\n\n /**\n Promise objects represent the eventual result of an asynchronous operation. The\n primary way of interacting with a promise is through its `then` method, which\n registers callbacks to receive either a promise's eventual value or the reason\n why the promise cannot be fulfilled.\n \n Terminology\n -----------\n \n - `promise` is an object or function with a `then` method whose behavior conforms to this specification.\n - `thenable` is an object or function that defines a `then` method.\n - `value` is any legal JavaScript value (including undefined, a thenable, or a promise).\n - `exception` is a value that is thrown using the throw statement.\n - `reason` is a value that indicates why a promise was rejected.\n - `settled` the final resting state of a promise, fulfilled or rejected.\n \n A promise can be in one of three states: pending, fulfilled, or rejected.\n \n Promises that are fulfilled have a fulfillment value and are in the fulfilled\n state. Promises that are rejected have a rejection reason and are in the\n rejected state. A fulfillment value is never a thenable.\n \n Promises can also be said to *resolve* a value. If this value is also a\n promise, then the original promise's settled state will match the value's\n settled state. So a promise that *resolves* a promise that rejects will\n itself reject, and a promise that *resolves* a promise that fulfills will\n itself fulfill.\n \n \n Basic Usage:\n ------------\n \n ```js\n let promise = new Promise(function(resolve, reject) {\n // on success\n resolve(value);\n \n // on failure\n reject(reason);\n });\n \n promise.then(function(value) {\n // on fulfillment\n }, function(reason) {\n // on rejection\n });\n ```\n \n Advanced Usage:\n ---------------\n \n Promises shine when abstracting away asynchronous interactions such as\n `XMLHttpRequest`s.\n \n ```js\n function getJSON(url) {\n return new Promise(function(resolve, reject){\n let xhr = new XMLHttpRequest();\n \n xhr.open('GET', url);\n xhr.onreadystatechange = handler;\n xhr.responseType = 'json';\n xhr.setRequestHeader('Accept', 'application/json');\n xhr.send();\n \n function handler() {\n if (this.readyState === this.DONE) {\n if (this.status === 200) {\n resolve(this.response);\n } else {\n reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']'));\n }\n }\n };\n });\n }\n \n getJSON('/posts.json').then(function(json) {\n // on fulfillment\n }, function(reason) {\n // on rejection\n });\n ```\n \n Unlike callbacks, promises are great composable primitives.\n \n ```js\n Promise.all([\n getJSON('/posts'),\n getJSON('/comments')\n ]).then(function(values){\n values[0] // => postsJSON\n values[1] // => commentsJSON\n \n return values;\n });\n ```\n \n @class Promise\n @param {Function} resolver\n Useful for tooling.\n @constructor\n */\n\n var Promise$1 = function () {\n function Promise(resolver) {\n this[PROMISE_ID] = nextId();\n this._result = this._state = undefined;\n this._subscribers = [];\n\n if (noop !== resolver) {\n typeof resolver !== 'function' && needsResolver();\n this instanceof Promise ? initializePromise(this, resolver) : needsNew();\n }\n }\n\n /**\n The primary way of interacting with a promise is through its `then` method,\n which registers callbacks to receive either a promise's eventual value or the\n reason why the promise cannot be fulfilled.\n ```js\n findUser().then(function(user){\n // user is available\n }, function(reason){\n // user is unavailable, and you are given the reason why\n });\n ```\n Chaining\n --------\n The return value of `then` is itself a promise. This second, 'downstream'\n promise is resolved with the return value of the first promise's fulfillment\n or rejection handler, or rejected if the handler throws an exception.\n ```js\n findUser().then(function (user) {\n return user.name;\n }, function (reason) {\n return 'default name';\n }).then(function (userName) {\n // If `findUser` fulfilled, `userName` will be the user's name, otherwise it\n // will be `'default name'`\n });\n findUser().then(function (user) {\n throw new Error('Found user, but still unhappy');\n }, function (reason) {\n throw new Error('`findUser` rejected and we're unhappy');\n }).then(function (value) {\n // never reached\n }, function (reason) {\n // if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'.\n // If `findUser` rejected, `reason` will be '`findUser` rejected and we're unhappy'.\n });\n ```\n If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.\n ```js\n findUser().then(function (user) {\n throw new PedagogicalException('Upstream error');\n }).then(function (value) {\n // never reached\n }).then(function (value) {\n // never reached\n }, function (reason) {\n // The `PedgagocialException` is propagated all the way down to here\n });\n ```\n Assimilation\n ------------\n Sometimes the value you want to propagate to a downstream promise can only be\n retrieved asynchronously. This can be achieved by returning a promise in the\n fulfillment or rejection handler. The downstream promise will then be pending\n until the returned promise is settled. This is called *assimilation*.\n ```js\n findUser().then(function (user) {\n return findCommentsByAuthor(user);\n }).then(function (comments) {\n // The user's comments are now available\n });\n ```\n If the assimliated promise rejects, then the downstream promise will also reject.\n ```js\n findUser().then(function (user) {\n return findCommentsByAuthor(user);\n }).then(function (comments) {\n // If `findCommentsByAuthor` fulfills, we'll have the value here\n }, function (reason) {\n // If `findCommentsByAuthor` rejects, we'll have the reason here\n });\n ```\n Simple Example\n --------------\n Synchronous Example\n ```javascript\n let result;\n try {\n result = findResult();\n // success\n } catch(reason) {\n // failure\n }\n ```\n Errback Example\n ```js\n findResult(function(result, err){\n if (err) {\n // failure\n } else {\n // success\n }\n });\n ```\n Promise Example;\n ```javascript\n findResult().then(function(result){\n // success\n }, function(reason){\n // failure\n });\n ```\n Advanced Example\n --------------\n Synchronous Example\n ```javascript\n let author, books;\n try {\n author = findAuthor();\n books = findBooksByAuthor(author);\n // success\n } catch(reason) {\n // failure\n }\n ```\n Errback Example\n ```js\n function foundBooks(books) {\n }\n function failure(reason) {\n }\n findAuthor(function(author, err){\n if (err) {\n failure(err);\n // failure\n } else {\n try {\n findBoooksByAuthor(author, function(books, err) {\n if (err) {\n failure(err);\n } else {\n try {\n foundBooks(books);\n } catch(reason) {\n failure(reason);\n }\n }\n });\n } catch(error) {\n failure(err);\n }\n // success\n }\n });\n ```\n Promise Example;\n ```javascript\n findAuthor().\n then(findBooksByAuthor).\n then(function(books){\n // found books\n }).catch(function(reason){\n // something went wrong\n });\n ```\n @method then\n @param {Function} onFulfilled\n @param {Function} onRejected\n Useful for tooling.\n @return {Promise}\n */\n\n /**\n `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same\n as the catch block of a try/catch statement.\n ```js\n function findAuthor(){\n throw new Error('couldn't find that author');\n }\n // synchronous\n try {\n findAuthor();\n } catch(reason) {\n // something went wrong\n }\n // async with promises\n findAuthor().catch(function(reason){\n // something went wrong\n });\n ```\n @method catch\n @param {Function} onRejection\n Useful for tooling.\n @return {Promise}\n */\n\n Promise.prototype.catch = function _catch(onRejection) {\n return this.then(null, onRejection);\n };\n\n /**\n `finally` will be invoked regardless of the promise's fate just as native\n try/catch/finally behaves\n \n Synchronous example:\n \n ```js\n findAuthor() {\n if (Math.random() > 0.5) {\n throw new Error();\n }\n return new Author();\n }\n \n try {\n return findAuthor(); // succeed or fail\n } catch(error) {\n return findOtherAuther();\n } finally {\n // always runs\n // doesn't affect the return value\n }\n ```\n \n Asynchronous example:\n \n ```js\n findAuthor().catch(function(reason){\n return findOtherAuther();\n }).finally(function(){\n // author was either found, or not\n });\n ```\n \n @method finally\n @param {Function} callback\n @return {Promise}\n */\n\n Promise.prototype.finally = function _finally(callback) {\n var promise = this;\n var constructor = promise.constructor;\n\n if (isFunction(callback)) {\n return promise.then(function (value) {\n return constructor.resolve(callback()).then(function () {\n return value;\n });\n }, function (reason) {\n return constructor.resolve(callback()).then(function () {\n throw reason;\n });\n });\n }\n\n return promise.then(callback, callback);\n };\n\n return Promise;\n }();\n\n Promise$1.prototype.then = then;\n Promise$1.all = all;\n Promise$1.race = race;\n Promise$1.resolve = resolve$1;\n Promise$1.reject = reject$1;\n Promise$1._setScheduler = setScheduler;\n Promise$1._setAsap = setAsap;\n Promise$1._asap = asap;\n\n /*global self*/\n function polyfill() {\n var local = void 0;\n\n if (typeof global !== 'undefined') {\n local = global;\n } else if (typeof self !== 'undefined') {\n local = self;\n } else {\n try {\n local = Function('return this')();\n } catch (e) {\n throw new Error('polyfill failed because global object is unavailable in this environment');\n }\n }\n\n var P = local.Promise;\n\n if (P) {\n var promiseToString = null;\n try {\n promiseToString = Object.prototype.toString.call(P.resolve());\n } catch (e) {\n // silently ignored\n }\n\n if (promiseToString === '[object Promise]' && !P.cast) {\n return;\n }\n }\n\n local.Promise = Promise$1;\n }\n\n // Strange compat..\n Promise$1.polyfill = polyfill;\n Promise$1.Promise = Promise$1;\n\n return Promise$1;\n});\n\n//# sourceMappingURL=es6-promise.map\n/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(53), __webpack_require__(9)))\n\n/***/ }),\n/* 45 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/* eslint no-invalid-this: 1 */\n\nvar ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';\nvar slice = Array.prototype.slice;\nvar toStr = Object.prototype.toString;\nvar funcType = '[object Function]';\n\nmodule.exports = function bind(that) {\n var target = this;\n if (typeof target !== 'function' || toStr.call(target) !== funcType) {\n throw new TypeError(ERROR_MESSAGE + target);\n }\n var args = slice.call(arguments, 1);\n\n var bound;\n var binder = function binder() {\n if (this instanceof bound) {\n var result = target.apply(this, args.concat(slice.call(arguments)));\n if (Object(result) === result) {\n return result;\n }\n return this;\n } else {\n return target.apply(that, args.concat(slice.call(arguments)));\n }\n };\n\n var boundLength = Math.max(0, target.length - args.length);\n var boundArgs = [];\n for (var i = 0; i < boundLength; i++) {\n boundArgs.push('$' + i);\n }\n\n bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);\n\n if (target.prototype) {\n var Empty = function Empty() {};\n Empty.prototype = target.prototype;\n bound.prototype = new Empty();\n Empty.prototype = null;\n }\n\n return bound;\n};\n\n/***/ }),\n/* 46 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n/* WEBPACK VAR INJECTION */(function(global) {\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar origSymbol = global.Symbol;\nvar hasSymbolSham = __webpack_require__(47);\n\nmodule.exports = function hasNativeSymbols() {\n\tif (typeof origSymbol !== 'function') {\n\t\treturn false;\n\t}\n\tif (typeof Symbol !== 'function') {\n\t\treturn false;\n\t}\n\tif (_typeof(origSymbol('foo')) !== 'symbol') {\n\t\treturn false;\n\t}\n\tif (_typeof(Symbol('bar')) !== 'symbol') {\n\t\treturn false;\n\t}\n\n\treturn hasSymbolSham();\n};\n/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(9)))\n\n/***/ }),\n/* 47 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/* eslint complexity: [2, 17], max-statements: [2, 33] */\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nmodule.exports = function hasSymbols() {\n\tif (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') {\n\t\treturn false;\n\t}\n\tif (_typeof(Symbol.iterator) === 'symbol') {\n\t\treturn true;\n\t}\n\n\tvar obj = {};\n\tvar sym = Symbol('test');\n\tvar symObj = Object(sym);\n\tif (typeof sym === 'string') {\n\t\treturn false;\n\t}\n\n\tif (Object.prototype.toString.call(sym) !== '[object Symbol]') {\n\t\treturn false;\n\t}\n\tif (Object.prototype.toString.call(symObj) !== '[object Symbol]') {\n\t\treturn false;\n\t}\n\n\t// temp disabled per https://github.com/ljharb/object.assign/issues/17\n\t// if (sym instanceof Symbol) { return false; }\n\t// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4\n\t// if (!(symObj instanceof Symbol)) { return false; }\n\n\t// if (typeof Symbol.prototype.toString !== 'function') { return false; }\n\t// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }\n\n\tvar symVal = 42;\n\tobj[sym] = symVal;\n\tfor (sym in obj) {\n\t\treturn false;\n\t} // eslint-disable-line no-restricted-syntax\n\tif (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) {\n\t\treturn false;\n\t}\n\n\tif (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) {\n\t\treturn false;\n\t}\n\n\tvar syms = Object.getOwnPropertySymbols(obj);\n\tif (syms.length !== 1 || syms[0] !== sym) {\n\t\treturn false;\n\t}\n\n\tif (!Object.prototype.propertyIsEnumerable.call(obj, sym)) {\n\t\treturn false;\n\t}\n\n\tif (typeof Object.getOwnPropertyDescriptor === 'function') {\n\t\tvar descriptor = Object.getOwnPropertyDescriptor(obj, sym);\n\t\tif (descriptor.value !== symVal || descriptor.enumerable !== true) {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\treturn true;\n};\n\n/***/ }),\n/* 48 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/**\n * Copyright 2016 Google Inc. All Rights Reserved.\n *\n * Licensed under the W3C SOFTWARE AND DOCUMENT NOTICE AND LICENSE.\n *\n * https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document\n * \n */\n\n(function (window, document) {\n 'use strict';\n\n // Exits early if all IntersectionObserver and IntersectionObserverEntry\n // features are natively supported.\n\n if ('IntersectionObserver' in window && 'IntersectionObserverEntry' in window && 'intersectionRatio' in window.IntersectionObserverEntry.prototype) {\n\n // Minimal polyfill for Edge 15's lack of `isIntersecting`\n // See: https://github.com/w3c/IntersectionObserver/issues/211\n if (!('isIntersecting' in window.IntersectionObserverEntry.prototype)) {\n Object.defineProperty(window.IntersectionObserverEntry.prototype, 'isIntersecting', {\n get: function get() {\n return this.intersectionRatio > 0;\n }\n });\n }\n return;\n }\n\n /**\n * An IntersectionObserver registry. This registry exists to hold a strong\n * reference to IntersectionObserver instances currently observering a target\n * element. Without this registry, instances without another reference may be\n * garbage collected.\n */\n var registry = [];\n\n /**\n * Creates the global IntersectionObserverEntry constructor.\n * https://w3c.github.io/IntersectionObserver/#intersection-observer-entry\n * @param {Object} entry A dictionary of instance properties.\n * @constructor\n */\n function IntersectionObserverEntry(entry) {\n this.time = entry.time;\n this.target = entry.target;\n this.rootBounds = entry.rootBounds;\n this.boundingClientRect = entry.boundingClientRect;\n this.intersectionRect = entry.intersectionRect || getEmptyRect();\n this.isIntersecting = !!entry.intersectionRect;\n\n // Calculates the intersection ratio.\n var targetRect = this.boundingClientRect;\n var targetArea = targetRect.width * targetRect.height;\n var intersectionRect = this.intersectionRect;\n var intersectionArea = intersectionRect.width * intersectionRect.height;\n\n // Sets intersection ratio.\n if (targetArea) {\n this.intersectionRatio = intersectionArea / targetArea;\n } else {\n // If area is zero and is intersecting, sets to 1, otherwise to 0\n this.intersectionRatio = this.isIntersecting ? 1 : 0;\n }\n }\n\n /**\n * Creates the global IntersectionObserver constructor.\n * https://w3c.github.io/IntersectionObserver/#intersection-observer-interface\n * @param {Function} callback The function to be invoked after intersection\n * changes have queued. The function is not invoked if the queue has\n * been emptied by calling the `takeRecords` method.\n * @param {Object=} opt_options Optional configuration options.\n * @constructor\n */\n function IntersectionObserver(callback, opt_options) {\n\n var options = opt_options || {};\n\n if (typeof callback != 'function') {\n throw new Error('callback must be a function');\n }\n\n if (options.root && options.root.nodeType != 1) {\n throw new Error('root must be an Element');\n }\n\n // Binds and throttles `this._checkForIntersections`.\n this._checkForIntersections = throttle(this._checkForIntersections.bind(this), this.THROTTLE_TIMEOUT);\n\n // Private properties.\n this._callback = callback;\n this._observationTargets = [];\n this._queuedEntries = [];\n this._rootMarginValues = this._parseRootMargin(options.rootMargin);\n\n // Public properties.\n this.thresholds = this._initThresholds(options.threshold);\n this.root = options.root || null;\n this.rootMargin = this._rootMarginValues.map(function (margin) {\n return margin.value + margin.unit;\n }).join(' ');\n }\n\n /**\n * The minimum interval within which the document will be checked for\n * intersection changes.\n */\n IntersectionObserver.prototype.THROTTLE_TIMEOUT = 100;\n\n /**\n * The frequency in which the polyfill polls for intersection changes.\n * this can be updated on a per instance basis and must be set prior to\n * calling `observe` on the first target.\n */\n IntersectionObserver.prototype.POLL_INTERVAL = null;\n\n /**\n * Starts observing a target element for intersection changes based on\n * the thresholds values.\n * @param {Element} target The DOM element to observe.\n */\n IntersectionObserver.prototype.observe = function (target) {\n // If the target is already being observed, do nothing.\n if (this._observationTargets.some(function (item) {\n return item.element == target;\n })) {\n return;\n }\n\n if (!(target && target.nodeType == 1)) {\n throw new Error('target must be an Element');\n }\n\n this._registerInstance();\n this._observationTargets.push({ element: target, entry: null });\n this._monitorIntersections();\n this._checkForIntersections();\n };\n\n /**\n * Stops observing a target element for intersection changes.\n * @param {Element} target The DOM element to observe.\n */\n IntersectionObserver.prototype.unobserve = function (target) {\n this._observationTargets = this._observationTargets.filter(function (item) {\n\n return item.element != target;\n });\n if (!this._observationTargets.length) {\n this._unmonitorIntersections();\n this._unregisterInstance();\n }\n };\n\n /**\n * Stops observing all target elements for intersection changes.\n */\n IntersectionObserver.prototype.disconnect = function () {\n this._observationTargets = [];\n this._unmonitorIntersections();\n this._unregisterInstance();\n };\n\n /**\n * Returns any queue entries that have not yet been reported to the\n * callback and clears the queue. This can be used in conjunction with the\n * callback to obtain the absolute most up-to-date intersection information.\n * @return {Array} The currently queued entries.\n */\n IntersectionObserver.prototype.takeRecords = function () {\n var records = this._queuedEntries.slice();\n this._queuedEntries = [];\n return records;\n };\n\n /**\n * Accepts the threshold value from the user configuration object and\n * returns a sorted array of unique threshold values. If a value is not\n * between 0 and 1 and error is thrown.\n * @private\n * @param {Array|number=} opt_threshold An optional threshold value or\n * a list of threshold values, defaulting to [0].\n * @return {Array} A sorted list of unique and valid threshold values.\n */\n IntersectionObserver.prototype._initThresholds = function (opt_threshold) {\n var threshold = opt_threshold || [0];\n if (!Array.isArray(threshold)) threshold = [threshold];\n\n return threshold.sort().filter(function (t, i, a) {\n if (typeof t != 'number' || isNaN(t) || t < 0 || t > 1) {\n throw new Error('threshold must be a number between 0 and 1 inclusively');\n }\n return t !== a[i - 1];\n });\n };\n\n /**\n * Accepts the rootMargin value from the user configuration object\n * and returns an array of the four margin values as an object containing\n * the value and unit properties. If any of the values are not properly\n * formatted or use a unit other than px or %, and error is thrown.\n * @private\n * @param {string=} opt_rootMargin An optional rootMargin value,\n * defaulting to '0px'.\n * @return {Array