Home › Forums › General Issues › Youtube embed deffer loading › Reply To: Youtube embed deffer loading
Add this filter to functions.php. It removes the src attribute value and add a data-src-defer
// defer loading of videos
function defer_video_src_to_data($data, $url, $args) {
$data = preg_replace('/(src="([^\"\']+)")/', 'src="" data-src-defer="$2"', $data);
return $data;
} // end function defer_video_src_to_data
add_filter('oembed_result', 'defer_video_src_to_data', 99, 3);
add_filter('embed_oembed_html', 'defer_video_src_to_data', 99, 3);
then add this javascript to your site which resets the src value after the page is loaded
// load defered videos
(function($){
$(window).load(function(e) {
$('[data-src-defer]').each(function(index, element) {
$(element).attr('src', $(element).attr('data-src-defer'));
});
});
})(jQuery);
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