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jamesmorrison/fix-attachment-urls-https.php

Created March 1, 2016 16:11
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fix-attachment-urls-https.php
<?php
/*
* Force URLs in srcset attributes into HTTPS scheme.
*/
add_filter( 'wp_calculate_image_srcset', function( $sources ) {
foreach ( $sources as &$source ) {
$source['url'] = set_url_scheme( $source['url'], 'https' );
}
return $sources;
} );
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