HTTP Proxy confusion

Hi

 

 

(First post)

 

 

 

We have a web application that embeds the google recaptcha within a page. Of course the requirement is that any redirection to the recaptcha element needs to be hidden/transparent. We are currently access these pages via a Apache ProxyPass server and its working well. We would like to remove this extra server and pass this function on to our F5 (3900) LB.

 

 

 

I am not having much luck. I can use a HTTP::redirect ..., this seem to provide the functionality however does not hid that fact that its is coming from google.

 

I have tried replacing the host via HTTP::header host and it seems to fail. Further research seems to indicate that I need to remove the "Accept-Encoding" header item, however this fails to work as well.

 

So if I run:

 

when HTTP_REQUEST_SEND {

 

clientside {

 

if { [HTTP::host] != "www.google.com" } then {

 

if { [HTTP::uri] starts_with "/recaptcha" } then {

 

HTTP::header replace host "www.google.com"

 

}

 

if { [HTTP::header exists "Accept-Encoding"] } then {

 

log local0. "Before [HTTP::header "Accept-Encoding"]"

 

HTTP::header remove "Accept-Encoding"

 

log local0. "After [HTTP::header "Accept-Encoding"]"

 

}

 

}

 

}

 

I found that the remove or even a replace "" does not appear to do anything. I am not sure if this it the problem, but I am certain that I have missed something somewhere.

 

 

 

Any ideas?

 

 

 

Regards,

 

Gerhard