Potential XSS vulnerability

```
Name your S3 file as "<b>hello" (without quotes), and try to display index. 
Somehow this file is considered as a directory, clicking on it leads to "Oops, 
an iternal error occured. Please try again later."
```

Original issue reported on code.google.com by `lyo...@codeminders.com` on 27 Feb 2013 at 6:59
