Re: [quicwg/base-drafts] Break up H2 Frame Considerations (#2698)

Lucas Pardue <> Mon, 20 May 2019 09:38 UTC

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From: Lucas Pardue <>
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Subject: Re: [quicwg/base-drafts] Break up H2 Frame Considerations (#2698)
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LPardue commented on this pull request.

> +PRIORITY frame on the request stream, if any, always comes first is explicitly
+Exclusive prioritization has been removed, since implicitly reprioritizing other
+streams which might or might not exist yet is prone to race conditions even with
+the assumptions used to permit initial PRIORITY frames on request streams.
+HTTP/3 permits the prioritization of requests, pushes and placeholders that each
+exist in separate identifier spaces. The HTTP/3 PRIORITY frame replaces the
+stream dependency field with fields that can identify the element of interest
+and its dependency.
+### Header Compression Differences
+HPACK was designed with the assumption of in-order delivery. A sequence of
+encoded header blocks must arrive (and be decoded) at an endpoint in the same

yeah I was looking at this from the wrong perspective. Header blocks is fine, I take back the suggestion.

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