diff -u b/core/modules/views_ui/src/Tests/DisplayPathTest.php b/core/modules/views_ui/src/Tests/DisplayPathTest.php
--- b/core/modules/views_ui/src/Tests/DisplayPathTest.php
+++ b/core/modules/views_ui/src/Tests/DisplayPathTest.php
@@ -62,6 +62,7 @@
    * Tests that View paths are properly filtered for XSS.
    */
   public function doPathXssFilterTest() {
+    global $base_path;
     $this->drupalGet('admin/structure/views/view/test_view');
     $this->drupalPostForm(NULL, array(), 'Add Page');
     $this->drupalPostForm('admin/structure/views/nojs/display/test_view/page_2/path', array('path' => '<object>malformed_path</object>'), t('Apply'));
@@ -69,7 +70,7 @@
     $this->drupalPostForm('admin/structure/views/nojs/display/test_view/page_3/path', array('path' => '<script>alert("hello");</script>'), t('Apply'));
     $this->drupalPostForm('admin/structure/views/view/test_view', array(), t('Save'));
     $this->drupalGet('admin/structure/views');
-    $this->assertRaw('<a href="/drupal8x/%3Cobject%3Emalformed_path%3C/object%3E">/&lt;object&gt;malformed_path&lt;/object&gt;</a>, <a href="/drupal8x/%3Cscript%3Ealert%28%22hello%22%29%3B%3C/script%3E">/&lt;script&gt;alert(&quot;hello&quot;);&lt;/script&gt;</a></td>', 'Two paths were filtered for XSS.');
+    $this->assertRaw('<a href="' . $base_path . '%3Cobject%3Emalformed_path%3C/object%3E">/&lt;object&gt;malformed_path&lt;/object&gt;</a>, <a href="' . $base_path . '%3Cscript%3Ealert%28%22hello%22%29%3B%3C/script%3E">/&lt;script&gt;alert(&quot;hello&quot;);&lt;/script&gt;</a></td>', 'Two paths were filtered for XSS.');
   }
 
   /**