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diff --git a/testing/web-platform/tests/service-workers/stub-4.7.1-install-phase-event.html b/testing/web-platform/tests/service-workers/stub-4.7.1-install-phase-event.html
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+++ b/testing/web-platform/tests/service-workers/stub-4.7.1-install-phase-event.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html>
+<title>Service Workers: InstallPhaseEvent</title>
+    <head>
+        <link rel="help" href="https://w3c.github.io/ServiceWorker/#install-phase-event">
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+
+        <script src=/resources/WebIDLParser.js></script>
+        <script src=/resources/idlharness.js></script>
+
+    </head>
+    <body>
+
+<script type=text/plain id="idl_0">
+interface InstallPhaseEvent : Event {
+  Promise<any> waitUntil(Promise<any> f);
+};
+</pre>
+
+<!--
+Service Workers have two [Lifecycle events][1], `[install][2]` and
+`[activate][3]`. Service Workers use the `[InstallPhaseEvent][4]` interface for
+`[activate][3]` event and the `[InstallEvent][5]` interface, which inherits
+from the `[InstallPhaseEvent][4]` interface, for `[install][2]` event.
+
+[1]: #lifecycle-events
+[2]: #install-event
+[3]: #activate-event
+[4]: #install-phase-event-interface
+[5]: #install-event-interface
+-->
+
+
+    <script type=text/plain id="untested_idls">
+        interface Event {};
+    </pre>
+
+    <script>
+        var idl_array = new IdlArray();
+        idl_array.add_untested_idls(document.getElementById("untested_idls").textContent);
+        idl_array.add_idls(document.getElementById("idl_0").textContent);
+        idl_array.add_objects({
+            InstallPhaseEvent: ["throw new Error ('No object defined for the InstallPhaseEvent interface')"]
+        });
+        idl_array.test();
+    </script>
+
+    </body>
+</html>
+