Bug: in Playground typing in markdown source box, actually jumps and chars start appear outside this source box

[vadimkantorov]

Caret inside markdown source box: Typing actually starts not in the source box:

[bhavyakaria]

@vadimkantorov Is this happening in a particular browser or for any specific flow?

I cannot replicate it at my end, am I missing something here?

https://github.com/facebook/lexical/assets/16178833/568afc62-0b05-421b-8662-b082313ce3ff

[vadimkantorov]

For me this was happening on the latest Chrome on Win11, flow:

• I open playground
• delete all default content
• click on M↓ to go to markdown source editing mode
• start typing
• typing appears above the "markdown code" block

I'll try to use Screen Recorder to showcase the problem on my machine