You can make IE run local content by selecting 'Allow active content to run in files on My Computer' in Internet Options > Advanced > Security. I never worked out how to get Chrome to do this though (not that I've tried very hard).

If I switch off that setting, or load the content locally in Chrome, I get the same results as you.

If if you can get it to run locally, I would still always run it from a server (which is why - as Daryl points out - Adapt includes $grunt server).

Even when you can get it working locally, the different security permissions and behaviours that browsers apply to content run via the file:// protocol means that you could get very different behaviour to that of the content running from a server.

Hope this helps!