Forum Discussion
jba3126
Cirrus
CirrusiRule to Rewrite User Agent Header
We have a client that has an internal browser policy for IE to run in compatibility mode due to legacy applications. Unfortunately with the latest update to our application servers this causes issues...
jba3126Cirrus
CirrusI've updated the rule and was able to figure out the syntax errors; however I'm getting the following the logs.
when HTTP_REQUEST {
Rewrite the User-Agent header value to show up supported browser
log local0. "[HTTP::header User-Agent]" if { [string toupper [HTTP::header "User-Agent"]] contains "MSIE 6" or "MSIE 7" or "MSIE 8" or "MSIE 9" or "MSIE 10"}{
Replace the User-Agent header with supported user agent
HTTP::header replace "User-Agent" "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko" log local0. "[HTTP::header User-Agent]" } }
Mar 31 18:01:20 f5-ve info tmm1[20879]: Rule /Common/HTTP-UserAgentHeader-Rewrite-iRule : Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; InfoPath.3; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0E; .NET4.0C) Mar 31 18:01:20 f5-ve err tmm1[20879]: 01220001:3: TCL error: /Common/HTTP-UserAgentHeader-Rewrite-iRule - can't use non-numeric string as operand of "||" while executing "if { [string toupper [HTTP::header "User-Agent"]] contains "MSIE 6" or "MSIE 7" or "MSIE 8" or "MSIE 9" or "MSIE 10"}{ Replace the User-Agent header..."