chrome tabCapture example

hi am tiring to use the tabCapture API without success for a few days now

what I tried
running the tab capture in the content - results in undefined to the API
running the tab capture inside an iframe that the src is HTML that accessible to the extension (iFrame.src = chrome.runtime.getURL("gif.html");) -result in an error when the user clicks on a button to initiate the recorded **Error starting tab capture**

maybe someone can share code example for using the tab capture API in manifest version 3

thanks

Start by reviewing the issue's reported tabCapture attempts in content scripts and extension-accessible iframes, along with the Manifest V3 context. A useful contribution would need to define and document a working example and a clear verification path for successful recording, but the issue does not name files or tests.

Written by the indexing model from the issue text.