Merge pull request AsyncHttpClient#1124 from jacobtolar/https-uri-over-proxy

HTTPS requests over HTTP CONNECT proxies should send relative URI once tunnel is established

Author: slandelle

client/src/main/java/org/asynchttpclient/netty/request/NettyRequestFactory.java

@@ -212,7 +212,7 @@ private String requestUri(Uri uri, ProxyServer proxyServer, boolean connect) {
             // proxy tunnelling, connect need host and explicit port
             return getAuthority(uri);
 
-        else if (proxyServer != null)
+        else if (proxyServer != null && !uri.isSecured())
             // proxy over HTTP, need full url
             return uri.toUrl();