CKEditor - Troubleshooting embed-no-provider-url

[Joy Rex]

I've noticed in my browser's console the following JS error:

I've gone to the linked page, but there's not really any details that I could find about troubleshooting this to find out which embed might be causing the issue: https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html#cfg-embed_provider

Any ideas on how to determine which embed is causing this?

[bfarber]

I've never seen that error before. Have you perhaps installed a custom CKEditor plugin that requires the embed-provider value to be set?

[Joy Rex]

I tried using the compatible CKEditor embed plugins, but they ended up not working - since there is no way to remove plugins/buttons from the system, I suppose I am going to have to reset the CKEditor settings and reapply everything...

Nevermind! I see if you click on the buttons not used on your toolbar, you CAN delete them! I'm removing all the ones not used (although that makes me wonder why I would be getting an error if it was a button/plugin not being used) and see if that clears the errors. Is there a way to remove plugins that don't have a button associated with them?

Deleting the unused buttons seems to have cleared the error!

[bfarber]

The unused icons still have javascript plugins behind the scenes that CKEditor sees and tries to load, which is probably the reason for the error. Most plugins are fine, but there can be exceptions.