mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-16 02:51:50 +00:00
234 lines
7.3 KiB
JavaScript
234 lines
7.3 KiB
JavaScript
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/*!
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* VisualEditor MediaWiki ArticleTargetSaver.
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*
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* @copyright 2011-2019 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* Target saver.
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*
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* Light-weight saver.
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*
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* @class mw.libs.ve.targetSaver
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* @singleton
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*/
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( function () {
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mw.libs.ve = mw.libs.ve || {};
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mw.libs.ve.targetSaver = {
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/**
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* Preload the library required for deflating so the user doesn't
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* have to wait when postHtml is called.
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*/
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preloadDeflate: function () {
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mw.loader.load( 'mediawiki.deflate' );
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},
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/**
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* Compress a string with deflate.
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*
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* @param {string} html HTML to deflate
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* @return {jQuery.Promise} Promise resolved with deflated HTML
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*/
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deflate: function ( html ) {
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return mw.loader.using( 'mediawiki.deflate' ).then( function () {
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return mw.deflate( html );
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} );
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},
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/**
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* Get HTML to send to Parsoid.
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*
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* If the document was generated from scratch (e.g. inside VisualEditor's converter), the
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* source document can be passed in to transplant the head tag, as well as the attributes
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* on the html and body tags.
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*
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* @param {HTMLDocument} newDoc Document generated by ve.dm.Converter. Will be modified.
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* @param {HTMLDocument} [oldDoc] Old document to copy attributes from.
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* @return {string} Full HTML document
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*/
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getHtml: function ( newDoc, oldDoc ) {
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var i, len;
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function copyAttributes( from, to ) {
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var i, len;
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for ( i = 0, len = from.attributes.length; i < len; i++ ) {
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to.setAttribute( from.attributes[ i ].name, from.attributes[ i ].value );
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}
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}
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if ( oldDoc ) {
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// Copy the head from the old document
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for ( i = 0, len = oldDoc.head.childNodes.length; i < len; i++ ) {
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newDoc.head.appendChild( oldDoc.head.childNodes[ i ].cloneNode( true ) );
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}
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// Copy attributes from the old document for the html, head and body
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copyAttributes( oldDoc.documentElement, newDoc.documentElement );
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copyAttributes( oldDoc.head, newDoc.head );
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copyAttributes( oldDoc.body, newDoc.body );
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}
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// Filter out junk that may have been added by browser plugins
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$( newDoc )
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.find( [
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'script', // T54884, T65229, T96533, T103430
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'noscript', // T144891
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'object', // T65229
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'style:not( [ data-mw ] )', // T55252, but allow <style data-mw/> e.g. TemplateStyles T188143
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'embed', // T53521, T54791, T65121
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'a[href^="javascript:"]', // T200971
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'img[src^="data:"]', // T192392
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'div[id="myEventWatcherDiv"]', // T53423
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'div[id="sendToInstapaperResults"]', // T63776
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'div[id="kloutify"]', // T69006
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'div[id^="mittoHidden"]', // T70900
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'div.hon.certificateLink', // HON (T209619)
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'div.donut-container' // Web of Trust (T189148)
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].join( ',' ) )
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.remove();
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// data-mw-section-id is copied to headings by ve.unwrapParsoidSections
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// Remove these to avoid triggering selser.
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$( newDoc ).find( '[data-mw-section-id]:not( section )' ).removeAttr( 'data-mw-section-id' );
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// Add doctype manually
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// ve.serializeXhtml is loaded separately from utils.parsing
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// eslint-disable-next-line no-undef
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return '<!doctype html>' + ve.serializeXhtml( newDoc );
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},
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/**
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* Serialize and deflate an HTML document
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*
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* @param {HTMLDocument} doc Document generated by ve.dm.Converter. Will be modified.
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* @param {HTMLDocument} [oldDoc] Old document to copy attributes from.
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* @return {jQuery.Promise} Promise resolved with deflated HTML
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*/
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deflateDoc: function ( doc, oldDoc ) {
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return this.deflate( this.getHtml( doc, oldDoc ) );
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},
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/**
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* Post an HTML document to the API.
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*
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* Serializes the document to HTML, deflates it, then passes to #postHtml.
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*
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* @param {HTMLDocument} doc Document to save
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* @param {Object} extraData Extra data to send to the API
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* @param {Object} options Options
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* @return {jQuery.Promise} Promise which resolves if the post was successful
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*/
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saveDoc: function ( doc, extraData, options ) {
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return this.deflateDoc( doc ).then( function ( html ) {
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return this.postHtml(
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html,
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null,
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extraData,
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options
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);
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} );
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},
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/**
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* Post HTML to the API.
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*
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* By default uses action=visualeditoredit, paction=save.
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*
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* @param {string} html HTML to post. Deflating is optional but recommended.
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* Should be included for retries even if a cache key is provided.
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* @param {string} [cacheKey] Optional cache key of HTML stashed on server.
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* @param {Object} [extraData] Extra data to send to the API
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* @param {Object} [options] Options
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* @param {mw.Api} [options.api] Api to use
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* @param {Function} [options.now] Function returning current time in milliseconds for tracking, e.g. ve.now
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* @param {Function} [options.track] Tracking function
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* @param {string} [options.eventName] Event name for tracking
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* @return {jQuery.Promise} Promise which resolves if the post was successful
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*/
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postHtml: function ( html, cacheKey, extraData, options ) {
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var request, fullEventName, api, data, start,
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saver = this;
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options = options || {};
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api = options.api || new mw.Api();
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if ( options.now ) {
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start = options.now();
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}
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if ( cacheKey ) {
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data = $.extend( {}, extraData, { cachekey: cacheKey } );
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} else {
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data = $.extend( {}, extraData, { html: html } );
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}
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data = $.extend(
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{
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action: 'visualeditoredit',
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paction: 'save',
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format: 'json',
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formatversion: 2
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},
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data
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);
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if ( data.token ) {
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request = api.post( data, { contentType: 'multipart/form-data' } );
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} else {
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request = api.postWithToken( 'csrf', data, { contentType: 'multipart/form-data' } );
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}
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return request.then(
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function ( response, jqxhr ) {
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var eventData;
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// Log data about the request if eventName was set
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if ( options.track && options.eventName ) {
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eventData = {
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bytes: require( 'mediawiki.String' ).byteLength( jqxhr.responseText ),
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duration: options.now() - start
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};
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fullEventName = 'performance.system.' + options.eventName +
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( cacheKey ? '.withCacheKey' : '.withoutCacheKey' );
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options.track( fullEventName, eventData );
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}
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return jqxhr;
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},
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function ( errorName, errorObject ) {
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var eventData,
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responseText = OO.getProp( errorObject, 'xhr', 'responseText' );
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if ( responseText && options.track && options.eventName ) {
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eventData = {
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bytes: require( 'mediawiki.String' ).byteLength( responseText ),
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duration: options.now() - start
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};
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if ( errorName === 'badcachekey' ) {
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fullEventName = 'performance.system.' + options.eventName + '.badCacheKey';
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} else {
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fullEventName = 'performance.system.' + options.eventName + '.withoutCacheKey';
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}
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options.track( fullEventName, eventData );
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}
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// This cache key is evidently bad, clear it
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if ( options.onCacheKeyFail ) {
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options.onCacheKeyFail();
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}
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if ( errorName === 'badcachekey' ) {
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// If the cache key failed, try again without the cache key
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return saver.postHtml(
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html,
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null,
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extraData,
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options
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);
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} else {
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// Failed for some other reason - let caller handle it.
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// FIXME Can't just `return this` because all callers are broken.
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return $.Deferred().reject( null, errorName, errorObject ).promise();
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}
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}
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);
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}
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};
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}() );
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