Re: [whatwg/fetch] 5.6 garbage collection makes GC observable via service worker & resource timing (#810)

If I understand correctly this is about fetch() calls where the result is not observed by script and the spec wants to allow the browser to detect this condition to auto-cancel the request.  Is that correct?

Does any browser currently try to implement this?

As a side note, it seems like fetch() calls could reasonably have side effects on the server that the browser can't reason about.  So I think this kind of auto-cancel might be surprising to developers.  (I'm afraid past-me argued for this feature in the past, though.)

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