From d3f0b609f593718c01432fd56797541c6754df6f Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Thu, 21 Feb 2019 15:37:52 +0100
Subject: [PATCH] use URL instead of creating new a element

---
 src/matrix-to.js | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/matrix-to.js b/src/matrix-to.js
index d997be12f9..c9040e04af 100644
--- a/src/matrix-to.js
+++ b/src/matrix-to.js
@@ -260,12 +260,7 @@ function getServerName(userId) {
 
 function getHostnameFromMatrixDomain(domain) {
     if (!domain) return null;
-
-    // The hostname might have a port, so we convert it to a URL and
-    // split out the real hostname.
-    const parser = document.createElement('a');
-    parser.href = "https://" + domain;
-    return parser.hostname;
+    return new URL(`https://${domain}`).hostname;
 }
 
 function isHostInRegex(hostname, regexps) {