Use encoding in all curl requests

common_config.php

@@ -159,4 +159,5 @@ function set_curl_options(CurlHandle $ch){
 	curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5_HOSTNAME);
 	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
 	curl_setopt($ch, CURLOPT_TIMEOUT, 60);
+	curl_setopt($ch, CURLOPT_ENCODING, '');
 }