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<title>[50934] trunk: Script Loader: Stop loading polyfills specific to Internet Explorer</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/50934">50934</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/50934","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>desrosj</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-05-19 19:59:55 +0000 (Wed, 19 May 2021)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Script Loader: Stop loading polyfills specific to Internet Explorer
This change removes the inline JavaScript attached to the `wp-polyfill` script responsible for loading polyfill libraries included specifically for Internet Explorer support.
Support for the final version of IE supported in WordPress Core (IE11) was removed in <a href="https://core.trac.wordpress.org/changeset/50784">[50784]</a> and will on longer be supported when the next version of WordPress is released.
These scripts are still registered and available to be enqueued, but WordPress will no longer load them by default.
For more information, see https://wordpress.org/news/2021/05/dropping-support-for-internet-explorer-11/.
Props youknowriad, gziolo, sergiomdgomes, desrosj.
Fixes <a href="https://core.trac.wordpress.org/ticket/53078">#53078</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesscriptloaderphp">trunk/src/wp-includes/script-loader.php</a></li>
<li><a href="#trunktestsphpunittestsdependenciesscriptsphp">trunk/tests/phpunit/tests/dependencies/scripts.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludesscriptloaderphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/script-loader.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/script-loader.php 2021-05-19 18:38:53 UTC (rev 50933)
+++ trunk/src/wp-includes/script-loader.php 2021-05-19 19:59:55 UTC (rev 50934)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -122,21 +122,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $scripts->add( 'wp-polyfill', null, array( 'wp-polyfill' ) );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- did_action( 'init' ) && $scripts->add_inline_script(
- 'wp-polyfill',
- wp_get_script_polyfill(
- $scripts,
- array(
- '\'fetch\' in window' => 'wp-polyfill-fetch',
- 'document.contains' => 'wp-polyfill-node-contains',
- 'window.DOMRect' => 'wp-polyfill-dom-rect',
- 'window.URL && window.URL.prototype && window.URLSearchParams' => 'wp-polyfill-url',
- 'window.FormData && window.FormData.prototype.keys' => 'wp-polyfill-formdata',
- 'Element.prototype.matches && Element.prototype.closest' => 'wp-polyfill-element-closest',
- '\'objectFit\' in document.documentElement.style' => 'wp-polyfill-object-fit',
- )
- )
- );
</del><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> did_action( 'init' ) && $scripts->add_inline_script( 'lodash', 'window.lodash = _.noConflict();' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunktestsphpunittestsdependenciesscriptsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/dependencies/scripts.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/dependencies/scripts.php 2021-05-19 18:38:53 UTC (rev 50933)
+++ trunk/tests/phpunit/tests/dependencies/scripts.php 2021-05-19 19:59:55 UTC (rev 50934)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -723,15 +723,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $ver = get_bloginfo( 'version' );
</span><span class="cx" style="display: block; padding: 0 10px"> $suffix = wp_scripts_get_suffix();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $expected = "<script type='text/javascript' src='/wp-admin/load-scripts.php?c=0&load%5Bchunk_0%5D=jquery-core,jquery-migrate&ver={$ver}'></script>\n";
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $expected = "<script type='text/javascript' src='/wp-admin/load-scripts.php?c=0&load%5Bchunk_0%5D=jquery-core,jquery-migrate,wp-polyfill,wp-dom-ready,wp-hooks&ver={$ver}'></script>\n";
</ins><span class="cx" style="display: block; padding: 0 10px"> $expected .= "<script type='text/javascript' id='test-example-js-before'>\nconsole.log(\"before\");\n</script>\n";
</span><span class="cx" style="display: block; padding: 0 10px"> $expected .= "<script type='text/javascript' src='http://example.com' id='test-example-js'></script>\n";
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $expected .= "<script type='text/javascript' src='/wp-includes/js/dist/vendor/wp-polyfill{$suffix}.js' id='wp-polyfill-js'></script>\n";
- $expected .= "<script type='text/javascript' id='wp-polyfill-js-after'>\n";
- $expected .= "( 'fetch' in window ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-fetch{$suffix}.js\"></scr' + 'ipt>' );( document.contains ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-node-contains{$suffix}.js\"></scr' + 'ipt>' );( window.DOMRect ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-dom-rect{$suffix}.js\"></scr' + 'ipt>' );( window.URL && window.URL.prototype && window.URLSearchParams ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-url{$suffix}.js\"></scr' + 'ipt>' );( window.FormData && window.FormData.prototype.keys ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-formdata{$suffix}.js\"></scr' + 'ipt>'
);( Element.prototype.matches && Element.prototype.closest ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-element-closest{$suffix}.js\"></scr' + 'ipt>' );( 'objectFit' in document.documentElement.style ) || document.write( '<script src=\"http://example.org/wp-includes/js/dist/vendor/wp-polyfill-object-fit{$suffix}.js\"></scr' + 'ipt>' );\n";
- $expected .= "</script>\n";
- $expected .= "<script type='text/javascript' src='/wp-includes/js/dist/dom-ready{$suffix}.js' id='wp-dom-ready-js'></script>\n";
- $expected .= "<script type='text/javascript' src='/wp-includes/js/dist/hooks{$suffix}.js' id='wp-hooks-js'></script>\n";
</del><span class="cx" style="display: block; padding: 0 10px"> $expected .= "<script type='text/javascript' src='/wp-includes/js/dist/i18n{$suffix}.js' id='wp-i18n-js'></script>\n";
</span><span class="cx" style="display: block; padding: 0 10px"> $expected .= "<script type='text/javascript' id='wp-i18n-js-after'>\n";
</span><span class="cx" style="display: block; padding: 0 10px"> $expected .= "wp.i18n.setLocaleData( { 'text direction\u0004ltr': [ 'ltr' ] } );\n";
</span></span></pre>
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