[Bug] CTRL+F / Find does not work for offscreen content

[chadsowald]

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

The existing code in this existing sample demonstrates the issue:
https://microsoft.github.io/monaco-editor/playground.html?source=v0.52.0#example-extending-language-services-configure-javascript-defaults

Monaco Editor Playground Code

The existing code in this existing sample demonstrates the issue:
https://microsoft.github.io/monaco-editor/playground.html?source=v0.52.0#example-extending-language-services-configure-javascript-defaults

Reproduction Steps

1. Visit
   https://microsoft.github.io/monaco-editor/playground.html?source=v0.52.0#example-extending-language-services-configure-javascript-defaults
2. Press CTRL+F (or find in page, etc)
3. Type 'jscode' (no quotes)

It seems that anything off screen isn't considered for built-in browser search. My React app has embedded Monaco editors too and I found this same bug. I don't think each app that embeds Monaco should have to hook into the browser find-in-page and try to do custom code.

Actual (Problematic) Behavior

Actual:
Only finds 1 instance of 'jscode'

Actual screenshot:

Expected Behavior

Expected:
Should find 2 instances 'jscode'. If I scroll just a bit lower down and repeat, it finds both:

Additional Context

Please refer to this blog post that has some commentary on find-in-page support these days:
https://textslashplain.com/2024/07/15/browser-features-find-in-page/

I noticed it pointed out https://developer.mozilla.org/en-US/docs/Web/CSS/content-visibility as one way to address this. Not sure if Monaco can make use of that?