Per the Codex entry for the_post_thumbnail(), passing an array has not worked since WordPress 3.0: PLEASE NOTE: The crop does not work in WP 3.0+. All that is needed for WP 3.0+ is the call for the thumbnail to post. Then proceed to media in the dashboard and set your thumbnail to crop to the … Read more
I found the same issue here and the solution from there works. The solution is as simple as pasting this: $content_width = 2000;// Value higher than your new ‘large’ width in functions.php Explanation copied from there(user Chip Bennett): I believe your issue is that the value set for the global $content_width variable (which is 640px … Read more
This is more of a general srcset and browser question, not a WordPress specific question. However, in general, you can’t predict what browsers will do with the srcset information. For your specific example, it appears that you failed to clear the cache completely between your reloads. Note the 304 response indicating that your browser already … Read more
To add to the answer from @cristian.raiber, there is no function in WordPress or php to detect screen sizes, and there will in all probabilty never be such functionality. Php runs server side, which runs before clients side which is browser side. As for php, and for that matter WordPress, I cannot see any future … Read more
I handle the context like this: function wpse_216001_srcset() { // generate your Srcset here and return } function wpse_216001_sizes() { // generate your sizes attribute here and return } add_filter( ‘wp_calculate_image_sizes’, ‘wpse_216001_sizes’, 10 , 2 ); add_filter( ‘wp_calculate_image_srcset’, ‘wpse_216001_srcset’, 10 , 5); // call one of the standard WP image output functions here remove_filter( ‘wp_calculate_image_sizes’, … Read more
If you are not willing to filter only image uploads, i.e., all uploaded media will reside in the same folder/subdomain, then there’s a simple configuration solution: go to options-media.php set the Store uploads option to wp-content/uploads set the Full URL option to http://uploads.yourdomain.com create a subdomain making the uploads folder be http://uploads.yourdomain.com
Query for post meta keys _wp_attachment_is_custom_background or _wp_attachment_is_custom_background: function t5_bg_img_id() { if ( ! $bg_img = get_background_image() ) return FALSE; $query = array( ‘post_type’ => ‘attachment’, ‘fields’ => ‘ids’, ‘meta_query’ => array ( array ( ‘key’ => ‘_wp_attachment_is_custom_background’, ‘value’ => get_option( ‘stylesheet’ ), ‘compare’ => ‘==’, ), array ( ‘key’ => ‘_wp_attachment_metadata’, ‘value’ => basename( … Read more
It may be that your theme hasn’t declared support for responsive embeds. Try adding this code to your functions.php // Add support for responsive embedded content. add_theme_support( ‘responsive-embeds’ ); or your theme setup file if there is one.
I think a quick thumbnail regeneration might be the cure for this. Try using Regenerate Thumbnails or a similar plugin, but backup your uploads directory before proceeding. In order to just disable WP responsive images use this filter. /** * Disable WP 4.4 srcset */ add_filter( ‘wp_calculate_image_srcset’, ‘__return_empty_array’ );
The srcset attribute is constructed from images that are the same aspect ratio. Create a few of those and you’ll be ok. add_image_size( ‘compare-offer-box’, 400, 300, true); add_image_size( ‘compare-offer-box-2’, 800, 600, true); add_image_size( ‘compare-offer-box-3’, 1200, 900, true); for example. The fourth, boolean, argument tells WP to crop to the exact proportions. To resize without cropping, … Read more