Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Jim_Betts_47293's avatar
Jim_Betts_47293
Icon for Nimbostratus rankNimbostratus
Mar 25, 2008

URL rewrite frustration

Howdy All:     After spending at least 4 hours searching DevCentral and dozens of attempts at trying to code the rules I need some help.     I have a web server (actually a Tumbleweed Secu...
application delivery
dev
devops
irules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 02, 2008
Hi Jim,

You could make your rule slightly more efficient by using string map instead of a regex command and removing the intermediate variables:


when HTTP_RESPONSE {
   if { [HTTP::status] == 302 and $Target_URI starts_with "/messenger"} {
      HTTP::header replace Location [string map {http:// https://} [HTTP::header value Location]]
   }
}

Aaron