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Re: [quicwg/base-drafts] allow PRIORITY frames referring to placeholders exceeding `SETTING_NUM_PLACEHOLDERS` (#2761)

Martin Thomson <notifications@github.com> Tue, 11 June 2019 00:20 UTC

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Subject: Re: [quicwg/base-drafts] allow PRIORITY frames referring to placeholders exceeding `SETTING_NUM_PLACEHOLDERS` (#2761)
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martinthomson commented on this pull request.



> @@ -1335,8 +1343,8 @@ The following settings are defined in HTTP/3:
   : The default value is unlimited.  See {{header-formatting}} for usage.
 
   SETTINGS_NUM_PLACEHOLDERS (0x9):
-  : The default value is 0.  However, this value SHOULD be set to a non-zero
-    value by servers.  See {{placeholders}} for usage.
+  : The default value is 0.  However, servers SHOULD set this value to 32 or

Just because we use 6 now, doesn't mean that we'll keep that scheme.  We're currently looking at ways to improve prioritization and placeholders are seen as being very useful in doing that.  It's very early yet, but it might be that more are found to be useful.

And 32 isn't a big number.  You need quite a few more zeros to qualify, I'd think.

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