Determines if default embed handlers should be loaded.Checks to make sure that the embeds library hasn’t already been loaded. If it hasn’t, then it will load the embeds library.
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Continue readingRemoves _wp_post_thumbnail_class_filter from the wp_get_attachment_image_attributes filter
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Continue readingAdds _wp_post_thumbnail_class_filter to the wp_get_attachment_image_attributes filter
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Continue readingAdds a ‘wp-post-image’ class to post thumbnails Uses the begin_fetch_post_thumbnail_html and end_fetch_post_thumbnail_html action hooks to dynamically add/remove itself so as to only filter post thumbnails
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