Preload any footer JS files in the header
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* Preload any footer JS files in the header | |
* | |
* originally from: https://macarthur.me/posts/preloading-javascript-in-wordpress | |
*/ | |
add_action('wp_head', function () { | |
global $wp_scripts; | |
foreach($wp_scripts->queue as $handle) { | |
$script = $wp_scripts->registered[$handle]; | |
//-- check if group exists | |
if (isset($script->extra['group'])) { | |
//-- Weird way to check if script is being enqueued in the footer. | |
if( $script->extra['group'] == 1) { | |
//-- If version is set, append to end of source. | |
$source = $script->src . ($script->ver ? "?ver={$script->ver}" : ""); | |
//-- Spit out the tag. | |
echo "<link rel='preload' href='{$source}' as='script'/>\n"; | |
} | |
} | |
} | |
}, 1); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment