copy https://github.com/mysociety/image-proxy/commit/5e304b5419d483c20ac68f10f1113d175d97d9c7
copy https://github.com/mysociety/image-proxy/commit/5e304b5419d483c20ac68f10f1113d175d97d9c7

mallzee/image-proxy,jpmckinney/image-proxy,mysociety/image-proxy,Qmerce/image-proxy