Adding "Accept" header to urllib type request (#180)
Adding "Accept" header to urllib type request (#180)

Summary:
X-link: https://github.com/facebookincubator/katran/pull/180

The urlretrieve method originally doesn't add this header, and in katran we noticed that the libmnl wasn't fetched anymore. After investigation, the request is blocked with error 403 because this header is missing. Adding it to the request.

Reviewed By: avasylev

Differential Revision: D40386108

fbshipit-source-id: a9b4b937ca12a04bc701d3f945681914151c0110

facebook/folly,facebook/folly,facebook/folly,facebook/folly,facebook/folly