When accessing an image file through Diffusion in order to show it in the browser an unhandled exception is thrown.
```
Unhandled Exception ("PhutilProxyException")
Host returned HTTP/200, but invalid JSON data in response to a Conduit method call.
```
Environment: Chrome 45.x on OSX 10.10.5
Note: This happened on our Phabricator instance on **phacility**.com
{F772820}