Can't remove block library stylesheet from the editor

[rocketdevcorp]

To reproduce

In #7776 others have said that they were able to remove 'wp-block-library-css' from the back end using similar code to this:

add_action( 'enqueue_block_editor_assets', 'popstar_modify_editor_styles', 10 );

function popstar_modify_editor_styles() {
 	wp_deregister_style( 'wp-block-library-css' );
	wp_register_style( 'wp-block-library-css', '' );
}

It's not working for me. I also tried adjusting the priority on the action.

I'm using WP 5.1.1 and the Gutenberg plugin 5.4.0.

[samikeijonen]

@rocketdevcorp Are you using handle wp-block-library or wp-block-library-css?

This is the weird part. In I'm using WP 5.1.1 and the Gutenberg plugin 5.4.0. wp-block-library works for me.

But when I pulled latest code from master couple of days ago, it does not work anymore. I'm using the code mentioned in this comment.

[rocketdevcorp]

@samikeijonen I had already updated to Gutenberg plugin 5.5.0 before I saw your message, but I can say that now (WP 5.1.1 and GB 5.5.0), neither handle are working.

I posted this as a new bug report, instead of just adding to #7776, because what you had reported as working before no longer works. But I guess this issue is really more of a Feature Request. I concur that devs really do need to be able to remove this stylesheet, or else the WYSIWYG selling point of Gutenberg goes away.

[samikeijonen]

I confirm that in plugin version 5.5.0 handles wp-block-library and wp-block-library-theme doesn't work anymore.

[justintadlock]

Changing the hook to enqueue_block_assets works for me on 5.6.1. Not sure how far back that's compatible.

[samikeijonen]

I'll confirm this works, thanks @justintadlock!

@rocketdevcorp I'm going to close this ticket now, but feel free to re-open if something is unclear.

[justintadlock]

Side note: The enqueue_block_assets runs on both the front and back end. So, you may only want to de-register on this hook. Still use enqueue_block_editor_assets to register your editor-only styles.