POST requests in the example do not work

```
What steps will reproduce the problem?
1. Visit view.html from a default install
2. See the broken images where the charts should be


I am unable to use POST requests with this library.  The images do not render 
when I visit view.html in the examples.

```

Original issue reported on code.google.com by `eva...@gmail.com` on 14 Oct 2010 at 5:38
