I think it's actually related to SSL.
/usr/share/doc/apache2/examples/ssl.conf (and my ssl.conf) contains:
SetEnvIf User-Agent ".*MSIE.*" \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0Is this necessary at all? If so, does this need to apply to non-SSL connections too?
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