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Forum Discussion

Ashish_Gupta_15's avatar
Ashish_Gupta_15
Icon for Nimbostratus rankNimbostratus
Dec 16, 2015

Clear browser cache upon redirect

Use cases :-   a) Typically user comes to the VIP A and the request is processed by the back end server. b) If the user does not come to the VIP A with the cookie (exception case), I wanted to red...
application delivery
BIG-IP
iRules
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Dec 16, 2015

Hi Ashish,

 

your description mentioned that you want to redirect the user if the cookie is "not" present. But the provided example code is build to redirect if the cookie "is" present? Could that be the tiny glitch that causes the trouble?

 

HTTP_REQUEST { 
    if { not ( [HTTP::cookie exists $cookie_name] ) } then { 
        HTTP::redirect "${static::error_page_url}" 
    } 
}

BTW: To manipulate the caching behavior, you have to make sure that the caching directives from the A.) websites original response are getting stripped/overwritten before sending to the client. Could you provide a captured HTTP-response header for this request to see which header needs to considered? (strip possible cookie information before posting)

 

Cheers, Kai