Merge branch 'ew/http_host'

* ew/http_host:
  use Host: header to generate cgit_hosturl

ui-shared.c

@@ -38,6 +38,10 @@ char *cgit_hosturl()
 {
 	char *host, *port;
 
+	host = getenv("HTTP_HOST");
+	if (host) {
+		host = xstrdup(host);
+	} else {
 		host = getenv("SERVER_NAME");
 		if (!host)
 			return NULL;
@@ -46,6 +50,7 @@ char *cgit_hosturl()
 			host = xstrdup(fmt("%s:%d", host, atoi(port)));
 		else
 			host = xstrdup(host);
+	}
 	return host;
 }