Issue 2062 - Preserve trailing question mark when converting URL into string

lib/url.js

Index: lib/url.js
===================================================================
--- a/lib/url.js
+++ b/lib/url.js
@@ -85,8 +85,8 @@
 exports.extractHostFromFrame = extractHostFromFrame;
 
 /**
- * Converts a URL object into a string. For HTTP(S) URLs the hash and
- * auth crendetials are stripped, and the hostname gets IDN-decoded.
+ * 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}
@@ -94,14 +94,22 @@
 function stringifyURL(url)
 {
   let protocol = url.protocol;
-  if (protocol != "http:" && protocol != "https:")
-    return url.href;
+  let href = url.href;
 
-  let host = getDecodedHostname(url);
-  if (url.port)
-    host += ":" + url.port;
-  return protocol + "//" + host + url.pathname + url.search;
+  if (protocol == "http:" || protocol == "https:")
+  {
+    let hostname = url.hostname;
+    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;
 }
+
 exports.stringifyURL = stringifyURL;
 
 function isDomain(hostname)