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Re: [quicwg/base-drafts] PRIORITY frame on control stream referencing unopened request stream (#2502)

Mike Bishop <notifications@github.com> Sat, 09 March 2019 00:53 UTC

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Subject: Re: [quicwg/base-drafts] PRIORITY frame on control stream referencing unopened request stream (#2502)
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>From discussion, I think the intent of that text was that if a PRIORITY frame prioritizes _or references_ something that's not in the tree, the missing element gets added at the default priority.

So if C arrives before B, the tree would briefly have this layout:
~~~
  o
 / \
1   3
    |
    2
~~~

Yes, that means the prioritization isn't quite what the client intended until the other PRIORITY frame arrives -- our design goal was eventual consistency, not guaranteed lockstep. The safeguard against that is to repeat B on the control stream if you care.

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