In Strategy 10 Secure Enterprise Platform, a new setting has been introduced that forces Internet Explorer 8 and above to render Strategy Web in edge mode instead of compatibility mode. Edge mode refers to the latest available document rendering mode of the used Internet Explorer version.
In order to enable the setting, go to the Web Administrator page > Other Configuration > Browser Compatibility and enable the setting "Force IE8+ to display web pages in Edge Document mode".

Force IE8+ to display web pages in Edge Document mode