Q810. How do I turn off compatibility mode in Internet Explorer version 9 or later?

A810. All features of FLIGHT work properly in Internet Explorer (IE) versions 9 or later.  However, if IE’s Compatibility View is turned on and the Document Mode is set to IE version 8 or earlier, then FLIGHT will not display properly.  To check your Document Mode setting, click on the gear cog in the upper-right corner of your browser, and then select F12 Developer Tools.

In Developer Tools, click the Document Mode menu.  A checkmark will be displayed next to you current Document Mode.  If your Document Mode is IE 8 or earlier, then FLIGHT will not work properly.  Please change your Document Mode to IE 9 or later 

Updated on

This web site is maintained by a contractor to the U.S. Environmental Protection Agency (RY2021.R.02)