nghttpx, the proxy from the nghttp2 package, turns rel=preload links from the Link header into server push: https://nghttp2.org/documentation/nghttpx.1.html#ser

nghttpx, the proxy from the nghttp2 package, turns rel=preload links from the Link header into server push: https://nghttp2.org/documentation/nghttpx.1.html#server-push https://nghttp2.org/documentation/nghttpx.1.html#server-push