If you’re using Dojo 1.4, 1.5, or 1.6, you’ll need to update to the latest patch to fix a regression with the release of Chrome version 29.
Ticket 17400 has the details on the fix.
You can get the patch from GitHub for your particular version of Dojo, and this fix will be included in the next release for each of Dojo 1.4.x, 1.5.x. and 1.6.x.
If you are already using Dojo 1.7 or newer, this fix already exists within your code base.