We have future plans to host ews-build.wekbit.org in a location where requests need to be made through a proxy. Twisted doesn't support 'HTTP_PROXY' environment variables as many libraries do. Additionally, it's not quite trivial to support proxy requests in Twisted. We need to implement proxy requests in Twisted and generalize them sufficiently so that we don't have to duplicate code in all places we're making requests in EWS.
<rdar://problem/103451811>
Pull request: https://github.com/WebKit/WebKit/pull/7760
Committed 258027@main (055b0ba705b4): <https://commits.webkit.org/258027@main> Reviewed commits have been landed. Closing PR #7760 and removing active labels.