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Re: Weird MAX_CONCURRENT_STREAMS value with empty HTTP/2 SETTINGS frame

From: Daniel Stenberg via curl-users <>
Date: Fri, 5 Jun 2020 18:09:36 +0200 (CEST)

On Fri, 5 Jun 2020, Alexandre Pion via curl-users wrote:

> I was looking for MAX_CONCURRENT_STREAMS SETTINGS value with curl and it
> appears that when receiving an empty SETTINGS frame curl says the server
> announced 4294967295 MAX_CONCURRENT_STREAMS. Is this a normal behavior ?

No it isn't.

Seems like it might be a nghttp2 issue though, as it tells curl there's a
settings frame and the curl code simply reads what nghttp2 told it...

Is this reproducible against a public site?

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Received on 2020-06-05