MD Settings: Allow trailing slashes in otherwise valid URLs.

chrome/test/data/webui/settings/route_tests.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 suite('route', function() {
   /**
    * Returns a new promise that resolves after a window 'popstate' event.
    * @return {!Promise}
    */
   function whenPopState(causeEvent) {
@@ skipping 139 matching lines @@
     return whenPopState(function() {
       window.history.back();
     }).then(function() {
       assertEquals(settings.Route.BASIC, settings.getCurrentRoute());
       assertTrue(settings.lastRouteChangeWasPopstate());
 
       settings.navigateTo(settings.Route.ADVANCED);
       assertFalse(settings.lastRouteChangeWasPopstate());
     });
   });
+
+  test('getRouteForPath trailing slashes', function() {
+    assertEquals(settings.Route.BASIC, settings.getRouteForPath('/'));
+    assertEquals(null, settings.getRouteForPath('//'));
+
+    // Simple path.
+    assertEquals(settings.Route.PEOPLE, settings.getRouteForPath('/people/'));
+    assertEquals(settings.Route.PEOPLE, settings.getRouteForPath('/people'));
+
+    // Path with a slash.
+    assertEquals(
+        settings.Route.SITE_SETTINGS_COOKIES,
+        settings.getRouteForPath('/content/cookies/'));
+
+    if (cr.isChromeOS) {
+      // Path with a dash.
+      assertEquals(
+          settings.Route.KEYBOARD,
+          settings.getRouteForPath('/keyboard-overlay/'));
+    }
+  });
 });