I’m wanting to add some functionality to the featured image block in the Gutenberg editor. I’ve got pretty close:
The problem is, I’m unable to select an image, and posts that already had a featured image assigned, are not loading the image in the block.
I think this must be due to the original block object’s key not being set. I’ve tried a random value, the post id, the media post id, ‘render’, ‘thumbnail’, and ‘post-thumbnail’, but no dice. What is ‘my-key’ suppose to be set to? Why is the featured image not loading, and not able to be set and saved?
window.wp.hooks.addFilter( 'editor.PostFeaturedImage', 'myplugin/myhook', function( original ) { console.log (original); return function() { return ( window.wp.element.createElement( 'div', { key: 'outer' + Math.random() }, [ 'Prepend above', _.extend( original( {} ), { key: 'my-key' } ), 'Append below' ] ) ); } } ); 