From: Robert Pluim <rpluim@gmail.com>
To: Hideki Saito <hidekis@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: EWW problems with SNI https sites?
Date: Mon, 15 Jul 2019 12:28:52 +0200 [thread overview]
Message-ID: <m2o91vsiaj.fsf@gmail.com> (raw)
In-Reply-To: <CAAaRP5tWieB99uxyrTbzozEkb6t6OFUZnUnzHdT8B2UWo6mwzw@mail.gmail.com> (Hideki Saito's message of "Sat, 13 Jul 2019 22:24:40 -0700")
>>>>> On Sat, 13 Jul 2019 22:24:40 -0700, Hideki Saito <hidekis@gmail.com> said:
Hideki> I think I've figured out pattern, although I'm not still sure what's going
Hideki> on.
Hideki> This probably is not really related with SNI, but related to IPv6 --
Hideki> perhaps there's some incompatibility with the way Windows IPv6 stack
Hideki> handles thing; if I disable IPv6, I'm not seeing this is happening. (And
Hideki> this seems to be Windows specific issue as this does not happen on Linux on
Hideki> the same network.)
Hideki> For the same reason, other places like https://wikipedia.org also fails.
Hideki> (Where it resolves to IPv6.)
Hideki> Anyone encountering similar issue and any workaround? (Unfortunately I
Hideki> can't really disable IPv6 as I'm relying certain things for it. Wondering
Hideki> if there's a way to disable IPv6 just for Emacs...)
Based on your original report of the error message "The plain HTTP
request was sent to HTTPS port", this is an issue Emacs has with
falling back from IP address A + TLS to IP address B + TLS, which
tends to manifest itself when the DNS response for a host returns an
IPv6 address, but that address is not actually reachable over IPv6.
I have a potential fix which I can send you as a patch, assuming you
can rebuild emacs.
Robert
prev parent reply other threads:[~2019-07-15 10:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-11 8:50 EWW problems with SNI https sites? Hideki Saito
2019-07-11 9:31 ` Colin Baxter
2019-07-11 12:53 ` Eli Zaretskii
[not found] ` <mailman.898.1562835105.2688.help-gnu-emacs@gnu.org>
2019-07-11 13:28 ` Lars Magne Ingebrigtsen
2019-07-13 5:03 ` Hideki Saito
2019-07-14 5:24 ` Hideki Saito
2019-07-15 10:28 ` Robert Pluim [this message]
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