Fixed the issue: Content from the Web site listed below is being blocked by the Internet Explorer Enhanced Security Configuration

Today I created a web test and ran it successfully in my local machine. I implemented it in TFS build, and after queuing the TFS build, the test failed.

Therefore, I logged in to the build machine (Windows Server 2008 R2 SP1) and hit the URL. The following dialog box appeared:

Content from the Web site listed below is being blocked by the Internet Explorer Enhanced Security Configuration.

That explains why the test failed in TFS build.

I put this site in my trusted site and the dialog box still showed up.

After looking into this issue, I need to do the following things:

Click Server Manager

Click Configure IE ESC

In the Administrators section, click off

After that, the test passes in TFS build.