Re: [w3c/ServiceWorker] Is resultingClientId preserved over redirects? (#1316)

Reserved clients are never exposed. Clients.get(id) resolves once the navigation finishes or rejects once the navigation failed. It would also reject if the resulting client is cross-origin to the caller. So I was thinking just having the same unique identifier would be safe.

In #process-a-navigate-fetch, I thought the relevant part (navigation follows a redirect) is step 7:
"If response has a location URL and it is either failure or a URL whose scheme is an HTTP(S) scheme, then set response to the result of performing HTTP-redirect fetch using request and response and then run this step again."

I read that as running step 7 again, i.e., step 5 only happens once.

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