Description

This issue came up in the WordPress Online Meetup DACH.

Content in a closed accordion panel is cannot be found via the browser search.
It does work in the details block, which opens automatically.

It might make sense to add hidden="until-found" attribute: https://developer.chrome.com/docs/css-ui/hidden-until-found

Step-by-step reproduction instructions

1. Create an accordion and add text to accordion panel
2. View the post
3. Open the browser search with cmd+F
4. Search for a word that is in the text in the panel

Screenshots, screen recording, code snippet

Editor

As you can see, you cannot find the text:

It works in the details block:

Environment info

No response

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure