should a frame navigated to about:blank inherit a service worker controller?

[wanderview]

Currently we inherit a service worker controller from the parent frame when a srcdoc or initial about:blank frame is created. Should some form of inheritance happen when an iframe with a non-blank URL gets navigated to about:blank?

If so, where should the service worker be inherited from. Apparently some browsers inherit the origin from the navigation initiator instead of the parent. Should service worker inheritance match? (This is a similar question to #1261).

This question was raised in https://crbug.com/880768.

[annevk]

Yes, and where I guess depends on how we generally resolve those questions for such a document, as this is not the only thing it'll inherit. Unfortunately all of that is still a mess in the HTML Standard.