Bug 2056277 Comment 0 Edit History

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Original comment by
on 
The [details object](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/onResponseStarted#details) currently exposes fields such as `ip` and `statusCode` but not protocol. As such it's not possible to tell if the request used "HTTP/1.1 or H2, H3".

This info is currently present in devtools, and [PerformanceResourceTiming.nextHopProtocol](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceResourceTiming/nextHopProtocol) (only available in the content page).
Revision 1 by
on 
The [details object](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/onResponseStarted#details) currently exposes fields such as `ip` and `statusCode` but not protocol. As such it's not possible to tell if the request used "HTTP/1.1 or H2, H3".

This info is currently present in devtools, and [PerformanceResourceTiming.nextHopProtocol](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceResourceTiming/nextHopProtocol) (only available in the content page).

See potential users in [IETF mailing list thread](https://mailarchive.ietf.org/arch/msg/happy/_SeeoARHtvOL_it5FJ-tfjH7Jh8/)

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