Issues with IE Compatibility
Be aware of the difference between the Browser Mode vs. Document Mode. Browser Mode is controlled by the client browser - is affected primarily by "Compatibility View" settings as well as domain Document Mode is controlled by the web server, and/ or the web page Using IE 8-9, some strange behaviour has been observed. Enabling Compatibility View (for either intranet, all websites) would result in the following for affected sites: IE conditional comments would detect IE7 User-agent sent would be IE7 (compatible) Browser mode would show IE 9 Compatibility View Document mode would be IE 7 standard The above behaviour would not be affected by X-UA-Compatible meta-tags within the page. However, sending X-UA-Compatible HTTP header would alter the behaviour as follows: IE conditional comments would detect IE9 User-agent sent would be IE7 (compatible) Browser mode would show IE 9 Compatibility View Document mode would depend on the value of the X-