We have CRM 2011 installed on Dev server. We can access dev CRM:
1. either through direct url which is like:
http://hostname:5555/orgname/main.aspx
2. or through TAM (Tivoli Access Manager) which has a url like:
https://hostname_provided_by_TAM/orgname/main.aspx
When we access the CRM through direct url, we can't open it on browsers other than IE but when we access it through TAM, it works fine on IE as well as Mozilla Firefox both. I am wondering how it is possible? One reason that I can think of is that somwhow TAM is making CRM server feel that the request is coming from IE even if it is coming from Firefox. But how?
Update 1: User-Agent string using Mozilla firefox:
For direct url: Mozilla/5.0 (Windows NT 6.1; rv:27.0) Gecko/20100101 Firefox/27.0
For TAM url: Mozilla/5.0 (Windows NT 6.1; rv:27.0) Gecko/20100101 Firefox/27.0
For both the requests, user agent string is same. However, when accessing CRM through direct url only one request (i.e. for main.aspx) goes to the web server and then the error page comes up while using TAM url request for main.aspx returns successfully and CRM page open up.