Adding the right mime type for proxy_request #273
sending ETAG back to github. #273
collect headers to send back to Github #273
sending better headers to github
Merge pull request #295 from karlcow/issue273-githubrequest

Better headers and better caching Fix #273
Revert "Better headers and better caching Fix #273"
Merge pull request #296 from webcompat/revert-295-issue273-githubrequest

Revert "Better headers and better caching Fix #273"
Improved "checkParams" method.