Zencoder failing behind proxy which injects an incorrect Content-Type header

[craiga]

I'm seeing some odd behaviour when I send a request to Zencoder from behind our corporate proxy.

It looks like an extra set Content-Type header is being set, which causes Zencoder to throw a Services_Zencoder_Exception with the message Unexpected content type: text/html (HTTP/1.1 100 Continue).

The response looks like this:

HTTP/1.0 200 Connection Established
Content-Type: text/html
Via: 1.0 ABCDEFGHIJK
Connection: Keep-Alive
Proxy-Connection: Keep-Alive

HTTP/1.1 100 Continue

HTTP/1.1 201 Created
Server: ZenServer 0.1.9
Date: Thu, 15 Jan 2015 03:45:48 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 184
Connection: close
Strict-Transport-Security: max-age=31536000
X-Zencoder-Rate-Remaining: 1000
ETag: "235caea52f485e3baf42c44482bde6af"
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST, PUT, DELETE
Access-Control-Allow-Headers: Zencoder-Api-Key
Access-Control-Max-Age: 300
Cache-Control: private, max-age=0, must-revalidate

{"id":136990733,"outputs":[{"id":408898097,…