Turns out file_get_contents is not compatible with some TLS connections :(
Created attachment 298656 [details] Fixes the bug
Comment on attachment 298656 [details] Fixes the bug r=me
Comment on attachment 298656 [details] Fixes the bug Clearing flags on attachment: 298656 Committed r210625: <http://trac.webkit.org/changeset/210625>
All reviewed patches have been landed. Closing bug.