Issue 6647 - Stop converting domains from punycode to unicode

lib/url.js

Index: lib/url.js
===================================================================
--- a/lib/url.js
+++ b/lib/url.js
@@ -20,25 +20,6 @@
 "use strict";
 
 const {getDomain} = require("./tldjs");
-const punycode = require("./punycode");
-
-let getDecodedHostname =
-/**
- * Gets the IDN-decoded hostname from a URL object.
- *
- * @param {URL} url
- * @return {string}
- * @static
- */
-exports.getDecodedHostname = url =>
-{
-  let {hostname} = url;
-
-  if (hostname.indexOf("xn--") == -1)
-    return hostname;
-
-  return punycode.toUnicode(hostname);
-};
 
 /**
  * Gets the IDN-decoded hostname from the URL of a frame.
@@ -53,37 +34,12 @@
 {
   for (; frame; frame = frame.parent)
   {
-    let hostname = getDecodedHostname(frame.url);
+    let hostname = frame.url.hostname;
     if (hostname)
       return hostname;
   }
 
-  return originUrl ? getDecodedHostname(originUrl) : "";
-};
-
-/**
- * Converts a URL object into a string. For HTTP(S) URLs
- * the hostname gets IDN-decoded and the hash is stripped.
- *
- * @param {URL} url
- * @return {string}
- */
-exports.stringifyURL = url =>
-{
-  let {protocol, href} = url;
-
-  if (protocol == "http:" || protocol == "https:")
-  {
-    let {hostname} = url;
-    if (hostname.indexOf("xn--") != -1)
-      href = href.replace(hostname, punycode.toUnicode(hostname));
-
-    let hash = href.indexOf("#");
-    if (hash != -1)
-      href = href.substr(0, hash);
-  }
-
-  return href;
+  return originUrl ? originUrl.hostname : "";
 };
 
 function isDomain(hostname)
@@ -106,7 +62,7 @@
  */
 exports.isThirdParty = (url, documentHost) =>
 {
-  let requestHost = getDecodedHostname(url).replace(/\.+$/, "");
+  let requestHost = url.hostname.replace(/\.+$/, "");
   documentHost = documentHost.replace(/\.+$/, "");
 
   if (requestHost == documentHost)