Ella

> An upload only button, would assume the content creators already has the image on their hard drive. No, there would only be one button, so straight upload/download the image...

Actually, I just looked at the images in Google Docs, and they allow CORS. :) So we can enable it for these images.

@bph I've already added it in #23565.

@bph Have you tested the button for paste from Google Docs. I'm curious to know if it worked out.

The issue here is only partly fixed. Currently, we allow uploading images with the image block only if it can be done in JS (the image host has to allow...

Yes, like I said, it would have to be uploaded through the server. So: send the image URL to the server, which then fetches the image and uploads it to...

We could upload external images after paste automatically. The problem is that paste is synchronous while uploading is async, so it's probably best to insert the block immediately and handle...

> However, I _guess_ the main bottleneck here is that we're using `` for each dropzone to correctly position itself on top of the paragraph block (to avoid changing the...

It doesn't seem necessary to me to render a Popover if we're not showing anything visually to the user. We should use the block element ref to attach a drag...

@kevin940726 Ping me for a review