1 files changed, 40 insertions, 0 deletions
diff --git a/testing/web-platform/tests/service-workers/service-worker/resources/partitioned-service-worker-third-party-iframe-getRegistrations.html b/testing/web-platform/tests/service-workers/service-worker/resources/partitioned-service-worker-third-party-iframe-getRegistrations.html
new file mode 100644
index 0000000000..747c058946
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+++ b/testing/web-platform/tests/service-workers/service-worker/resources/partitioned-service-worker-third-party-iframe-getRegistrations.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<title>Service Worker: 3P iframe for partitioned service workers</title>
+<script src="./test-helpers.sub.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="./partitioned-utils.js"></script>
+
+<body>
+  This iframe will register a service worker when it loads and then will use
+  getRegistrations to get a handle to the SW. It will then postMessage to the
+  SW to retrieve the SW's ID. This iframe will then forward that message up,
+  eventually, to the test.
+  <script>
+
+    async function onLoad() {
+      const scope = './partitioned-'
+      const absoluteScope = new URL(scope, window.location).href;
+
+      await setupServiceWorker();
+
+      // Once the SW sends us its ID, forward it up to the window.
+      navigator.serviceWorker.addEventListener('message', evt => {
+        window.parent.postMessage(evt.data, '*');
+      });
+
+      // Now get the SW with getRegistrations.
+      const retrieved_registrations =
+        await navigator.serviceWorker.getRegistrations();
+
+      // It's possible that other tests have left behind other service workers.
+      // This steps filters those other SWs out.
+      const filtered_registrations =
+        retrieved_registrations.filter(reg => reg.scope == absoluteScope);
+
+      filtered_registrations[0].active.postMessage({type: "get-id"});
+
+    }
+
+    self.addEventListener('load', onLoad);
+  </script>
+</body>
+\ No newline at end of file