Forcing to IE 9 Compatability mode iRule

Question

Still sorta new to iRules and I am wondering if anyone can validate this simple iRule I wrote?  Hopefully I am on the right track here.  &nbsp;
What the app teams are ultimately trying to accomplish is to force IE 10 into IE9 compatibility mode.  So what I was going to do with the F5 is for every HTTP Response back from the F5 I would insert into the response HTTP header file the following, so the top of the response http header file would look the following:&nbsp;
&nbsp;
Would by all accounts, would this iRule I wrote do it as I hoped it will.  I have not been able to really test it yet, because I will have place in semi-production system, so I want to have you review it first to get your thoughts.   &nbsp;
when HTTP_RESPONSE {
HTTP::header insert    
}&nbsp;

stephanmanthey · Answer

Hi Iceman, 
this code needs to be inserted into the http payload.&nbsp;
An http header (as in your sample iRule) would be the wrong place.&nbsp;
As it needs to placed between the  tags (just googled it), your iRule will not work.&nbsp;
I can have a look at it tomorrow night, if there is no solution in the meantime. 
Stephan &nbsp;

what_lies_bene1 · Answer

There is a method that can be used via a HTTP header which would be far easier to do than inserting a meta tag. This is my source: http://stackoverflow.com/questions/18024953/x-ua-compatible-ie-9-vs-ie-emulateie9-other-browsers.
So, this would work;
when HTTP_RESPONSE {
 HTTP::header insert "X-UA-Compatible" "IE=EmulateIE9"
}

kevin_stewart · Answer

If you still need it in the head section, you could use a STREAM profile and the something like the following:
when HTTP_REQUEST {
    STREAM::disable
    HTTP::header remove "Accept-Encoding"
}
when HTTP_RESPONSE {
    if {[HTTP::header value Content-Type] contains "text"}{
        STREAM::expression {@@@}
        STREAM::enable
    }
}

baddogsettle_16 · Answer

I just set up a new Citrix instance on my BIG-IP and encountered the exact same issue when using IE11. I added the iRule defined by 'What Lies Beneath' and it works perfectly.&nbsp;

nirav_67406 · Answer

Can someone confirm ?  we need to do SSL offload to modify the HTTP the header right ?&nbsp;

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Forcing to IE 9 Compatability mode iRule

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