Embeds: Modernize wp-embed script with removal of obsolete IE10/IE11 code and support for WP<4.4.
* Remove obsolete `load` event handler in `wp-embed` since IE10+ support `DOMContentLoaded`.
* Replace obsolete use of `document.createElement('a')` in favor of the newer `URL` class (supported in all browsers but obsolete IE11).
* Remove obsolete IE10/IE11 code.
* Combine conditionals.
* Use `substring()` instead of deprecated `substr()` method.
* Eliminate the stipulation that `wp-embed.js` not include ampersands, considering this was put in place for WP<4.3 which now accounts for only 1.43% of sites. This includes the elimination of the `verify:wp-embed` grunt task.
Props westonruter, swissspidy.
Fixes #58974.
Built from https://develop.svn.wordpress.org/trunk@56383
git-svn-id: http://core.svn.wordpress.org/trunk@55895 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Weston Ruter
parent
268203f8aa
commit
a2cdce6c82
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@ -4,25 +4,23 @@
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* @since 4.4.0
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* @output wp-includes/js/wp-embed.js
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*
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* This file cannot have ampersands in it. This is to ensure
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* it can be embedded in older versions of WordPress.
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* See https://core.trac.wordpress.org/changeset/35708.
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* Single line comments should not be used since they will break
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* the script when inlined in get_post_embed_html(), specifically
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* when the comments are not stripped out due to SCRIPT_DEBUG
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* being turned on.
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*/
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(function ( window, document ) {
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'use strict';
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var supportedBrowser = false,
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loaded = false;
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if ( document.querySelector ) {
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if ( window.addEventListener ) {
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supportedBrowser = true;
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}
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}
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/* Abort for ancient browsers. */
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if ( ! document.querySelector || ! window.addEventListener || typeof URL === 'undefined' ) {
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return;
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}
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/** @namespace wp */
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window.wp = window.wp || {};
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/* Abort if script was already executed. */
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if ( !! window.wp.receiveEmbedMessage ) {
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return;
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}
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@ -35,15 +33,11 @@
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window.wp.receiveEmbedMessage = function( e ) {
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var data = e.data;
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if ( ! data ) {
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return;
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}
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if ( ! ( data.secret || data.message || data.value ) ) {
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return;
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}
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if ( /[^a-zA-Z0-9]/.test( data.secret ) ) {
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/* Verify shape of message. */
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if (
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! ( data || data.secret || data.message || data.value ) ||
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/[^a-zA-Z0-9]/.test( data.secret )
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) {
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return;
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}
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@ -65,8 +59,8 @@
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source.removeAttribute( 'style' );
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/* Resize the iframe on request. */
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if ( 'height' === data.message ) {
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/* Resize the iframe on request. */
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height = parseInt( data.value, 10 );
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if ( height > 1000 ) {
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height = 1000;
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@ -75,42 +69,25 @@
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}
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source.height = height;
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}
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} else if ( 'link' === data.message ) {
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/* Link to a specific URL on request. */
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sourceURL = new URL( source.getAttribute( 'src' ) );
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targetURL = new URL( data.value );
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/* Link to a specific URL on request. */
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if ( 'link' === data.message ) {
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sourceURL = document.createElement( 'a' );
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targetURL = document.createElement( 'a' );
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sourceURL.href = source.getAttribute( 'src' );
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targetURL.href = data.value;
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/* Only follow link if the protocol is in the allow list. */
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if ( ! allowedProtocols.test( targetURL.protocol ) ) {
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continue;
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}
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/* Only continue if link hostname matches iframe's hostname. */
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if ( targetURL.host === sourceURL.host ) {
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if ( document.activeElement === source ) {
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window.top.location.href = data.value;
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}
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if (
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allowedProtocols.test( targetURL.protocol ) &&
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targetURL.host === sourceURL.host &&
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document.activeElement === source
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) {
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window.top.location.href = data.value;
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}
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}
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}
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};
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function onLoad() {
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if ( loaded ) {
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return;
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}
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loaded = true;
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var isIE10 = -1 !== navigator.appVersion.indexOf( 'MSIE 10' ),
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isIE11 = !!navigator.userAgent.match( /Trident.*rv:11\./ ),
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iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
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iframeClone, i, source, secret;
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var iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
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i, source, secret;
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for ( i = 0; i < iframes.length; i++ ) {
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/** @var {IframeElement} */
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@ -119,18 +96,11 @@
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secret = source.getAttribute( 'data-secret' );
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if ( ! secret ) {
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/* Add secret to iframe */
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secret = Math.random().toString( 36 ).substr( 2, 10 );
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secret = Math.random().toString( 36 ).substring( 2, 12 );
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source.src += '#?secret=' + secret;
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source.setAttribute( 'data-secret', secret );
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}
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/* Remove security attribute from iframes in IE10 and IE11. */
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if ( ( isIE10 || isIE11 ) ) {
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iframeClone = source.cloneNode( true );
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iframeClone.removeAttribute( 'security' );
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source.parentNode.replaceChild( iframeClone, source );
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}
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/*
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* Let post embed window know that the parent is ready for receiving the height message, in case the iframe
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* loaded before wp-embed.js was loaded. When the ready message is received by the post embed window, the
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@ -143,9 +113,6 @@
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}
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}
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if ( supportedBrowser ) {
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window.addEventListener( 'message', window.wp.receiveEmbedMessage, false );
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document.addEventListener( 'DOMContentLoaded', onLoad, false );
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window.addEventListener( 'load', onLoad, false );
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}
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window.addEventListener( 'message', window.wp.receiveEmbedMessage, false );
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document.addEventListener( 'DOMContentLoaded', onLoad, false );
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})( window, document );
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@ -1,2 +1,2 @@
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/*! This file is auto-generated */
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!function(c,d){"use strict";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),l=0;l<n.length;l++)n[l].style.display="none";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=d.createElement("a"),a=d.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document);
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!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
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@ -16,7 +16,7 @@
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*
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* @global string $wp_version
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*/
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$wp_version = '6.4-alpha-56382';
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$wp_version = '6.4-alpha-56383';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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