fixup! fix($browser): normalize all optionally en/decoded characters …

…when comparing URLs

src/ng/urlUtils.js

@@ -4,11 +4,11 @@
 // https://tools.ietf.org/html/rfc3986#appendix-A
 var sub_delims = '!$&\'()*+,;=';
 var alpha = 'abcdefghijklmnopqrstuvwxyz';
-var digit = '0123456789'
+var digit = '0123456789';
 var unreserved = alpha + digit + '-._~';
-var pchar = unreserved + sub_delims + ':' + '@';        //pct-encoded excluded
-var query = (pchar + '/' + '?').replace(/[&=]/g, '');   //&= excluded
-var fragment = pchar + '/' + '?';
+var pchar = unreserved + sub_delims + ':@';        //pct-encoded excluded
+var query = (pchar + '/?').replace(/[&=]/g, '');   //&= excluded
+var fragment = pchar + '/?';
 
 // Map of the encoded version of all characters not requiring encoding
 var PATH_NON_ENCODED = charsToEncodedMap(pchar);
@@ -126,9 +126,15 @@ function urlResolve(url) {
   // No browser normalizes all of the optionally encoded characters consistently.
   // Various browsers normalize a subsets of the unreserved characters within the
   // path, search and hash portions of the URL.
-  urlParsingNode.pathname = normalizeUriPath(urlParsingNode.pathname);
-  urlParsingNode.search = normalizeUriQuery(urlParsingNode.search.replace(/^\?/, ''));
-  urlParsingNode.hash = normalizeUriFragment(urlParsingNode.hash.replace(/^\#/, ''));
+  if (urlParsingNode.pathname) {
+    urlParsingNode.pathname = normalizeUriPath(urlParsingNode.pathname);
+  }
+  if (urlParsingNode.search) {
+    urlParsingNode.search = normalizeUriQuery(urlParsingNode.search.replace(/^\?/, ''));
+  }
+  if (urlParsingNode.hash) {
+    urlParsingNode.hash = normalizeUriFragment(urlParsingNode.hash.replace(/^#/, ''));
+  }
 
   return {
     href: urlParsingNode.href,