Solved! Go to Solution.
It will be fixed in the upcoming 3.12 3.11 release (this week or next).
I just double checked and it is working in the new version for IE10.
This can still be reproduced in IE 11 using this sample:
From ESRI support:
"I found this zoom-in red box not show in IE 10/11 issue has already been assigned a bug in our system and I have assigned this case to this bug on your behalf. [#NIM098054 The red zoom box does not display in an ArcGIS API for JavaScript application.] This issue will be fixed in ArcGIS JavaScript 4.0"
It will be fixed in the upcoming 3.12 3.11 release (this week or next).
I just double checked and it is working in the new version for IE10.
http://js.arcgis.com/3.11/dojo/dojo.js does not have the "js/dojo" that 3.10 has (http://js.arcgis.com/3.10/js/dojo/dojo/dojo.js). Is it safe to assume "js/dojo" will be dropped?