On Thu, Dec 15, 2022 at 08:58:16AM +0100, Amaury Denoyelle wrote:
> On Wed, Dec 14, 2022 at 11:20:44PM -0700, Shawn Heisey wrote:
> > On 12/14/22 21:23, Илья Шипицин wrote:
> > > Can you try to bisect?
> > I had made some incorrect assumptions about what's needed to use
> > bisect.  With a little bit of research I figured it out and it was a
> > LOT easier than I had imagined.
> > > I suspect that it won't help, browsers tend to remember things in
> > > their own way
> > One thing I have learned in my testing is that doing shift-reload on
> > the page means it will never switch to h3.  So I use shift-reload
> > followed by a couple of regular reloads as a way of resetting what
> > the browser remembers.  That seems to work.
> > The bisect process only took a few runs to find the problem commit:
> > 3ca4223c5e1f18a19dc93b0b09ffdbd295554d46 is the first bad commit
> > commit 3ca4223c5e1f18a19dc93b0b09ffdbd295554d46
> > Author: Amaury Denoyelle <adenoye...@haproxy.com>
> > Date:   Wed Dec 7 14:31:42 2022 +0100
> >     BUG/MEDIUM: h3: reject request with invalid header name
> > [...]
> I seem to be able to reach your website with H3 currently. Did you
> revert to an older version ? Regarding this commit, it rejects requests
> with invalid headers (with uppercase or non-HTTP tokens in the field
> name). Have you tried with several browsers and with command-line
> clients ?
> I will look on my side to see if I missed something.

With a local instance of nextcloud I am able to reproduce a bug linked
to this commit with caused the deactivation of H3. I'm investigating on
it...

-- 
Amaury Denoyelle

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