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'use strict';
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(function checkTypedArrayCompatibility() {
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if (typeof Uint8Array !== 'undefined') {
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if (typeof Uint8Array.prototype.subarray === 'undefined') {
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Uint8Array.prototype.subarray = function subarray(start, end) {
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return new Uint8Array(this.slice(start, end));
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};
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Float32Array.prototype.subarray = function subarray(start, end) {
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return new Float32Array(this.slice(start, end));
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};
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}
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if (typeof Float64Array === 'undefined')
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window.Float64Array = Float32Array;
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return;
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}
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function subarray(start, end) {
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return new TypedArray(this.slice(start, end));
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}
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function setArrayOffset(array, offset) {
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if (arguments.length < 2)
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offset = 0;
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for (var i = 0, n = array.length; i < n; ++i, ++offset)
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this[offset] = array[i] & 0xFF;
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}
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function TypedArray(arg1) {
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var result;
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if (typeof arg1 === 'number') {
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result = [];
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for (var i = 0; i < arg1; ++i)
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result[i] = 0;
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} else
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result = arg1.slice(0);
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result.subarray = subarray;
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result.buffer = result;
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result.byteLength = result.length;
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result.set = setArrayOffset;
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if (typeof arg1 === 'object' && arg1.buffer)
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result.buffer = arg1.buffer;
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return result;
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}
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window.Uint8Array = TypedArray;
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window.Uint32Array = TypedArray;
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window.Int32Array = TypedArray;
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window.Uint16Array = TypedArray;
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window.Float32Array = TypedArray;
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window.Float64Array = TypedArray;
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})();
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(function checkObjectCreateCompatibility() {
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if (typeof Object.create !== 'undefined')
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return;
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Object.create = function objectCreate(proto) {
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var constructor = function objectCreateConstructor() {};
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constructor.prototype = proto;
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return new constructor();
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};
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})();
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(function checkObjectDefinePropertyCompatibility() {
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if (typeof Object.defineProperty !== 'undefined') {
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var definePropertyPossible = true;
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try {
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Object.defineProperty(new Image(), 'id', { value: 'test' });
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} catch (e) {
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definePropertyPossible = false;
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}
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if (definePropertyPossible) return;
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}
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Object.defineProperty = function objectDefineProperty(obj, name, def) {
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delete obj[name];
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if ('get' in def)
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obj.__defineGetter__(name, def['get']);
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if ('set' in def)
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obj.__defineSetter__(name, def['set']);
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if ('value' in def) {
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obj.__defineSetter__(name, function objectDefinePropertySetter(value) {
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this.__defineGetter__(name, function objectDefinePropertyGetter() {
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return value;
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});
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return value;
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});
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obj[name] = def.value;
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}
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};
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})();
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(function checkObjectKeysCompatibility() {
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if (typeof Object.keys !== 'undefined')
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return;
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Object.keys = function objectKeys(obj) {
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var result = [];
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for (var i in obj) {
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if (obj.hasOwnProperty(i))
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result.push(i);
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}
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return result;
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};
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})();
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(function checkFileReaderReadAsArrayBuffer() {
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if (typeof FileReader === 'undefined')
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return;
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var frPrototype = FileReader.prototype;
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if ('readAsArrayBuffer' in frPrototype)
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return;
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Object.defineProperty(frPrototype, 'readAsArrayBuffer', {
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value: function fileReaderReadAsArrayBuffer(blob) {
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var fileReader = new FileReader();
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var originalReader = this;
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fileReader.onload = function fileReaderOnload(evt) {
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var data = evt.target.result;
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var buffer = new ArrayBuffer(data.length);
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var uint8Array = new Uint8Array(buffer);
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for (var i = 0, ii = data.length; i < ii; i++)
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uint8Array[i] = data.charCodeAt(i);
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Object.defineProperty(originalReader, 'result', {
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value: buffer,
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enumerable: true,
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writable: false,
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configurable: true
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});
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var event = document.createEvent('HTMLEvents');
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event.initEvent('load', false, false);
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originalReader.dispatchEvent(event);
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};
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fileReader.readAsBinaryString(blob);
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}
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});
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})();
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(function checkXMLHttpRequestResponseCompatibility() {
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var xhrPrototype = XMLHttpRequest.prototype;
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if (!('overrideMimeType' in xhrPrototype)) {
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Object.defineProperty(xhrPrototype, 'overrideMimeType', {
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value: function xmlHttpRequestOverrideMimeType(mimeType) {}
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});
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}
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if ('response' in xhrPrototype ||
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'mozResponseArrayBuffer' in xhrPrototype ||
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'mozResponse' in xhrPrototype ||
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'responseArrayBuffer' in xhrPrototype)
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return;
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if (typeof VBArray !== 'undefined') {
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Object.defineProperty(xhrPrototype, 'response', {
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get: function xmlHttpRequestResponseGet() {
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return new Uint8Array(new VBArray(this.responseBody).toArray());
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}
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});
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return;
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}
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function responseTypeSetter() {
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this.overrideMimeType('text/plain; charset=x-user-defined');
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}
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if (typeof xhrPrototype.overrideMimeType === 'function') {
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Object.defineProperty(xhrPrototype, 'responseType',
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{ set: responseTypeSetter });
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}
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function responseGetter() {
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var text = this.responseText;
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var i, n = text.length;
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var result = new Uint8Array(n);
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for (i = 0; i < n; ++i)
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result[i] = text.charCodeAt(i) & 0xFF;
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return result;
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}
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Object.defineProperty(xhrPrototype, 'response', { get: responseGetter });
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})();
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(function checkWindowBtoaCompatibility() {
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if ('btoa' in window)
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return;
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var digits =
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'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
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window.btoa = function windowBtoa(chars) {
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var buffer = '';
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var i, n;
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for (i = 0, n = chars.length; i < n; i += 3) {
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var b1 = chars.charCodeAt(i) & 0xFF;
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var b2 = chars.charCodeAt(i + 1) & 0xFF;
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var b3 = chars.charCodeAt(i + 2) & 0xFF;
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var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
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var d3 = i + 1 < n ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
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var d4 = i + 2 < n ? (b3 & 0x3F) : 64;
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buffer += (digits.charAt(d1) + digits.charAt(d2) +
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digits.charAt(d3) + digits.charAt(d4));
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}
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return buffer;
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};
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})();
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(function checkFunctionPrototypeBindCompatibility() {
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if (typeof Function.prototype.bind !== 'undefined')
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return;
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Function.prototype.bind = function functionPrototypeBind(obj) {
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var fn = this, headArgs = Array.prototype.slice.call(arguments, 1);
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var bound = function functionPrototypeBindBound() {
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var args = Array.prototype.concat.apply(headArgs, arguments);
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return fn.apply(obj, args);
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};
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return bound;
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};
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})();
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(function checkDataURICompatibility() {
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if (!('documentMode' in document) ||
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document.documentMode !== 9 && document.documentMode !== 10)
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return;
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var originalSrcDescriptor = Object.getOwnPropertyDescriptor(
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HTMLIFrameElement.prototype, 'src');
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Object.defineProperty(HTMLIFrameElement.prototype, 'src', {
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get: function htmlIFrameElementPrototypeSrcGet() { return this.$src; },
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set: function htmlIFrameElementPrototypeSrcSet(src) {
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this.$src = src;
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if (src.substr(0, 14) != 'data:text/html') {
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originalSrcDescriptor.set.call(this, src);
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return;
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}
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originalSrcDescriptor.set.call(this, 'about:blank');
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setTimeout((function htmlIFrameElementPrototypeSrcOpenWriteClose() {
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var doc = this.contentDocument;
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doc.open('text/html');
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doc.write(src.substr(src.indexOf(',') + 1));
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doc.close();
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}).bind(this), 0);
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},
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enumerable: true
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});
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})();
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(function checkDatasetProperty() {
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var div = document.createElement('div');
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if ('dataset' in div)
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return;
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Object.defineProperty(HTMLElement.prototype, 'dataset', {
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get: function() {
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if (this._dataset)
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return this._dataset;
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var dataset = {};
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for (var j = 0, jj = this.attributes.length; j < jj; j++) {
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var attribute = this.attributes[j];
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if (attribute.name.substring(0, 5) != 'data-')
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continue;
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var key = attribute.name.substring(5).replace(/\-([a-z])/g,
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function(all, ch) { return ch.toUpperCase(); });
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dataset[key] = attribute.value;
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}
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Object.defineProperty(this, '_dataset', {
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value: dataset,
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writable: false,
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enumerable: false
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});
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return dataset;
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},
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enumerable: true
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});
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})();
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(function checkClassListProperty() {
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var div = document.createElement('div');
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if ('classList' in div)
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return;
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315
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function changeList(element, itemName, add, remove) {
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var s = element.className || '';
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var list = s.split(/\s+/g);
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if (list[0] == '') list.shift();
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var index = list.indexOf(itemName);
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if (index < 0 && add)
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list.push(itemName);
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if (index >= 0 && remove)
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list.splice(index, 1);
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element.className = list.join(' ');
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}
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var classListPrototype = {
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add: function(name) {
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changeList(this.element, name, true, false);
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},
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remove: function(name) {
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changeList(this.element, name, false, true);
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},
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toggle: function(name) {
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changeList(this.element, name, true, true);
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}
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};
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Object.defineProperty(HTMLElement.prototype, 'classList', {
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get: function() {
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if (this._classList)
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return this._classList;
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var classList = Object.create(classListPrototype, {
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element: {
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value: this,
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writable: false,
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enumerable: true
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}
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});
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Object.defineProperty(this, '_classList', {
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value: classList,
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writable: false,
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enumerable: false
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});
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return classList;
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},
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enumerable: true
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});
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360
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})();
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361
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362
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363
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(function checkConsoleCompatibility() {
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364
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if (typeof console == 'undefined') {
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365
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console = {log: function() {}};
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366
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}
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367
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})();
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368
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|
369
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370
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(function checkOnClickCompatibility() {
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371
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372
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373
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function ignoreIfTargetDisabled(event) {
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374
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if (isDisabled(event.target)) {
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event.stopPropagation();
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}
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}
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function isDisabled(node) {
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return node.disabled || (node.parentNode && isDisabled(node.parentNode));
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380
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}
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381
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if (navigator.userAgent.indexOf('Opera') != -1) {
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382
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383
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document.addEventListener('click', ignoreIfTargetDisabled, true);
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384
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}
|
385
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})();
|
386
|
|
387
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|
388
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(function checkNavigatorLanguage() {
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389
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if ('language' in navigator)
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390
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return;
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391
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Object.defineProperty(navigator, 'language', {
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392
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get: function navigatorLanguage() {
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393
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var language = navigator.userLanguage || 'en-US';
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394
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return language.substring(0, 2).toLowerCase() +
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395
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language.substring(2).toUpperCase();
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396
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},
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397
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enumerable: true
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398
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});
|
399
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})();
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