IE10 Caching problem

```
What steps will reproduce the problem?
1. Load a built version of viewer in IE10, I get a "AppCache Fatal Error"
2. If you update the code and try to load again in IE10, I don't think it 
updates.


```

Original issue reported on code.google.com by `kyle.tha...@gmail.com` on 9 Jun 2013 at 7:04
