Added simplest test case showing issue #9

NOT REALLY FOR MERGING

Here's a test case just showing the failing case for issue #9. (The code is straight from the README.) 

It's Horrible™: 

* All the scripts are hardcoded. 
* It assumes you're running hoodie at localhost:6001.
* Almost certainly need to run it with CORS checks off. 

`~ $ open /Applications/Google\ Chrome.app --args --disable-web-security`

However it does show the issue. Uncomment the `fetch()` call before the assertion and it'll pass.

Hopefully you'll find it helpful.