HTTP Headers not returned by server (protocol violation)

What steps will reproduce the problem?
1. Ran Server with Windows Python 2.7
2. Ran Fiddler to monitor network traffic.
3. Accessed server with browser (locally) with malicious url: 
http://localhost:8099/check_url?url=seos-poi.ru

What is the expected output?

Expect Fidller not to protocol violation.

What do you see instead?

Fiddler has detected a protocol violation in session #403.

The Server did not return properly formatted HTTP Headers. Maybe missing 
altogether (e.g. HTTP/0.9), maybe only \r\r instead of \r\n\r\n?

What version of the product are you using? 

0.2

On what operating system?

Windows 7 x64 and Windows Server 2008 x64

Please provide any additional information below.

This is causing problems when trying to access the server programmatically from 
.Net however the problem is easiest to demonstrate with a Browser and Fiddler 
running so that you can see the problem.

Original issue reported on code.google.com by wildfict...@gmail.com on 12 Aug 2010 at 4:31

MLWave / google-safe-browsing

HTTP Headers not returned by server (protocol violation) #14