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From Drew Tomlinson <>
Subject [users@httpd] mod_rewrite And Browser Caching
Date Sat, 18 Aug 2012 14:55:25 GMT
I've been working at this for days and couldn't figure out why a 
mod_rewrite rule wasn't working.  My situation was that I wanted to 
redirect this:


While not redirecting

After beating my head for a few days and realizing first attempts were 
creating a rewrite loop, I finally came up with this syntax:

RewriteEngine /On/
RewriteCond /%{HTTPS} off/
RewriteCond /%{REQUEST_URI} \/unique_directory\/ [NC]/
RewriteRule /(.*) https://%{HTTP_HOST}%{REQUEST_URI}

/Yet on the PC I had been using for testing, the redirects were still 
failing using both Firefox 14 and Internet Explorer 9.  I had many tabs 
open in Firefox so I never closed and reopened it but I did close and 
reopen IE9.  Attempts to load pages still timed out just like when I had 
the rewrite loop in place.

Also, I had enabled the RewriteLog for debugging with RewriteLogLevel 
9.  I thought it odd that I would not see requests from my IP address 
hitting the rewrite log.

Finally in desperation, I went to another PC and tested with the same 
browsers.  Redirection worked just as I expected it to and I could see 
those in the rewrite log.

So now I'm trying to understand how browsers cache information and what 
it takes to get them to forget that information.

Thanks in advance.



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