Tracking: ServiceWorker interaction

[littledan]

It's not clear how/whether top-level await plays well with ServiceWorkers. See w3c/ServiceWorker#1407 for discussion.

[annevk]

I think we should offer an internal slot on agents to disable this that we can set on service worker agents. And then it can be a syntax error there.

Service worker scripts run with different states and when processing events such as fetch there really shouldn't be anything blocking the execution of its listener callbacks.

[littledan]

Should we have this conversation here or in w3c/ServiceWorker#1407 ? We might be able to engage more ServiceWorker experts in their repository.

[domenic]

Thanks, I'd missed or forgotten about that. I will move my comment there and mark it off-topic for here, as indeed the better discussion seems to be over there.