Hi 🙂
I’m also interested in providing block preview!
Thanks to @jghazally I tried to add this to acf_register_block
:
'example' => array(
'attributes' => array(
'cover' => ADBLOCKS__PLUGIN_URL . '/assets/fallback.png',
),
),
but I have no preview in the editor, just a spinning loader and then a white space
screenshot attached