diff --git a/test/fixtures/url-tests-additional.js b/test/fixtures/url-tests-additional.js
index 7e3282d17d091b..ffe47fb639dcba 100644
--- a/test/fixtures/url-tests-additional.js
+++ b/test/fixtures/url-tests-additional.js
@@ -1,87 +1,6 @@
+'use strict';
+
+// This file contains test cases not part of the WPT
+
 module.exports = [
-  {
-    'url': 'tftp://foobar.com/someconfig;mode=netascii',
-    'protocol': 'tftp:',
-    'hostname': 'foobar.com',
-    'pathname': '/someconfig;mode=netascii'
-  },
-  {
-    'url': 'telnet://user:pass@foobar.com:23/',
-    'protocol': 'telnet:',
-    'username': 'user',
-    'password': 'pass',
-    'hostname': 'foobar.com',
-    'port': '23',
-    'pathname': '/'
-  },
-  {
-    'url': 'ut2004://10.10.10.10:7777/Index.ut2',
-    'protocol': 'ut2004:',
-    'hostname': '10.10.10.10',
-    'port': '7777',
-    'pathname': '/Index.ut2'
-  },
-  {
-    'url': 'redis://foo:bar@somehost:6379/0?baz=bam&qux=baz',
-    'protocol': 'redis:',
-    'username': 'foo',
-    'password': 'bar',
-    'hostname': 'somehost',
-    'port': '6379',
-    'pathname': '/0',
-    'search': '?baz=bam&qux=baz'
-  },
-  {
-    'url': 'rsync://foo@host:911/sup',
-    'protocol': 'rsync:',
-    'username': 'foo',
-    'hostname': 'host',
-    'port': '911',
-    'pathname': '/sup'
-  },
-  {
-    'url': 'git://github.com/foo/bar.git',
-    'protocol': 'git:',
-    'hostname': 'github.com',
-    'pathname': '/foo/bar.git'
-  },
-  {
-    'url': 'irc://myserver.com:6999/channel?passwd',
-    'protocol': 'irc:',
-    'hostname': 'myserver.com',
-    'port': '6999',
-    'pathname': '/channel',
-    'search': '?passwd'
-  },
-  {
-    'url': 'dns://fw.example.org:9999/foo.bar.org?type=TXT',
-    'protocol': 'dns:',
-    'hostname': 'fw.example.org',
-    'port': '9999',
-    'pathname': '/foo.bar.org',
-    'search': '?type=TXT'
-  },
-  {
-    'url': 'ldap://localhost:389/ou=People,o=JNDITutorial',
-    'protocol': 'ldap:',
-    'hostname': 'localhost',
-    'port': '389',
-    'pathname': '/ou=People,o=JNDITutorial'
-  },
-  {
-    'url': 'git+https://github.com/foo/bar',
-    'protocol': 'git+https:',
-    'hostname': 'github.com',
-    'pathname': '/foo/bar'
-  },
-  {
-    'url': 'urn:ietf:rfc:2648',
-    'protocol': 'urn:',
-    'pathname': 'ietf:rfc:2648'
-  },
-  {
-    'url': 'tag:joe@example.org,2001:foo/bar',
-    'protocol': 'tag:',
-    'pathname': 'joe@example.org,2001:foo/bar'
-  }
 ];