Slate: Firefox does not show blinking cursor without content

[comatory]

Do you want to request a _feature_ or report a _bug_?

_bug_

What's the current behavior?

When using latest Firefox browser, I will not get blinking cursor in the editor until I start typing (or when there is already some content present).

(JSFiddle template is "broken' for me so posting codesandbox link instead)

• https://codesandbox.io/s/slatejs-firefox-cursor-problem-ofb7t
• 
• MacOS 10.14.5, Firefox 69.0.1, [email protected], [email protected], [email protected], [email protected]

What's the expected behavior?

The editor should show blinking cursor even when not having any content, like Chrome and Safari does (tested). If I upgrade only react & react-dom to at least version 16 it works. However for my use case, I can't really upgrade any of the listed dependencies.

NOTE: If anyone could point me to relevant issue or MR, it'd be very helpful. I don't mind creating a patch for my usage as long as it works with my dependencies. Since this is tied to React my suspicion is it'd have to do maybe with slate-react library?

[comatory]

Bumping this. I can't figure this one out and I'm not sure if it is happening to me locally or not. Seems like something a lot of ppl will experience on Firefox browsers.

Could someone point me maybe to some PR or part of code where I could try and figure it out? Thanks.

[ianstormtaylor]

I believe that this may be fixed by https://github.com/ianstormtaylor/slate/pull/3093, which has changed a lot of the logic in Slate and slate-react especially. I'm going to close this out, but as always, feel free to open a new issue if it persists for you. Thanks for understanding.