Compatibility with browser search and text fragments

[stof]

While reading the release notes of Safari 26.2 which implements support for hidden="until-found", I realized something about this library.

The approach used in version 3 could easily add support for search in the content of tab panels, by using hidden="until-found" instead of hidden and the beforematch event to update the selected tab and hide the current panel.
I have no idea how the approach used in version 4 (using shadow DOM) could be made compatible with this search behavior.

[lesliecdubs]

Hey @stof, thanks for opening this issue. Can you confirm nothing is broken for you right now because of this? And can you confirm whether other browsers support hidden="until-found"?

[stof]

Nothing is broken right now.

However, it is not possible to link to a text fragment inside a tab panel that is not the initial one, as it won't be found in the page. This issue is more about starting a discussion about how this could be achieved.
As said in my initial message, version 3 of this library could easily be adapted to support it. As it is based on hidden for tab panels, it could leverage hidden="until-found" in browsers supporting it. However, the new approach used in version 4 might make it harder.