Errors runninng my ap in IE 11. Getting Javascript errors

Question

I"m getting this following javascript error when running my app in IE 11.  It runs fine in chrome or firefox.

'iexplore.exe' (Script): Loaded 'Script Code (Windows Internet Explorer)'.

Exception was thrown at line 129, column 405 in http://js.arcgis.com/3.9/init.js

0x800a139e - JavaScript runtime error: unknown exception

Exception was thrown at line 129, column 405 in http://js.arcgis.com/3.9/init.js

0x800a139e - JavaScript runtime error: unknown exception

Exception was thrown at line 158, column 83 in http://js.arcgis.com/3.9/init.js

0x80070005 - JavaScript runtime error: Access is denied.

Exception was thrown at line 177, column 391 in http://js.arcgis.com/3.9/init.js

0x80070005 - JavaScript runtime error: Access is denied.

Unhandled exception at line 1230, column 147 in http://js.arcgis.com/3.9/init.js

0x800a138f - JavaScript runtime error: Unable to get property '_getInfo' of undefined or null reference

Unhandled exception at line 1253, column 294 in http://js.arcgis.com/3.9/init.js

0x800a138f - JavaScript runtime error: Unable to get property '_surface' of undefined or null reference

The program '[5024] iexplore.exe' has exited with code 0 (0x0).

The program '[4648] iisexpress.exe: Program Trace' has exited with code 0 (0x0).

The program '[4648] iisexpress.exe' has exited with code 0 (0x0).

JamieHammermann · Answer

You may want to check to see if compatibility view is enabled (try turning it off if it is on, and vice versa).

Are you running it from your IDE (eg. Visual Studio?)?  If so, you may want to deploy it to a server to test.