SSL + IE problem

知らなかった...

##   Notice: Most problems of broken clients are also related to the HTTP
##   keep-alive facility, so you usually additionally want to disable
##   keep-alive for those clients, too. Use variable "nokeepalive" for this.
##   Similarly, one has to force some clients to use HTTP/1.0 to workaround
#   their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
##   "force-response-1.0" for this.

BrowserMatch ".*MSIE.*" \
         nokeepalive ssl-unclean-shutdown \
         downgrade-1.0 force-response-1.0

IE系でKeepAliveを正常に処理出来ない不具合があるようです。

そこで回避策として、ブラウザからUser-Agentに"MSIE"の文字列を含めてきた場合に
強制的にKeep-Aliveを無効にする方法。

Apache + SSL + IE でたまに"ページが見つかりません"になる場合は
上記で対応するというものです。

今日初めて知りました...