Greetings.

We have encountered a problem concerning the file upload browser feature in
MSIE (4 and 5) together with SSL. The  transfer hangs, and never completes,
if the file (i.e. POST request) is larger than ~30kB. Everything works fine
when SSL is disabled. Needles to say but it works just fine with Netscape.

An interesting thing is that if we turn on debug level logging for the ssl
engine, the upload completes, but takes a lot of time and disk space.

We have found some information on an issue with MSIE and IIS sending SSLV3
packets which are to large. There is supposed to exist a config directive
for SSLeay called SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER. Anybody succeeded in
enabling it?

We use:
Apache 1.3.9
mod_ssl 2.4.2-1.3.9
win32 platform

Anybody else seen anything like this?

==
Fredrik Johansson
Deneb AB
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