Restricting the DevTools to an iframe using the iframe selector tool causes the Net Monitor to be cleared.

Steps to reproduce:

1. Go to https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe
2. Reload the page
3. Click the iframe selector and choose the first iframe (https://interactive-examples.mdn.mozilla.net/pages/tabbed/iframe.html)

Actual result:
The Net Monitor gets emptied and there are no requests visible anymore.

Expected result:
The requests list is restricted to the requests originating from that iframe. In this case that would be the all the requests to https://www.openstreetmap.org.

Same is true when switching back to the main frame. That means you have to reload the page in order to see the related requests.

Sebastian

The Bugbug bot thinks this bug should belong to the 'DevTools::Netmonitor' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Thanks for the report Sebastian.
Honza

(removing blocking dt-fission-execution-context, this always worked this way as far as I can remember)