1 files changed, 33 insertions, 0 deletions
diff --git a/dom/indexedDB/test/third_party_window.html b/dom/indexedDB/test/third_party_window.html
new file mode 100644
index 0000000000..14b16bf5d4
--- /dev/null
+++ b/dom/indexedDB/test/third_party_window.html
@@ -0,0 +1,33 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html>
+<head>
+  <title>Indexed Database Test</title>
+  <script type="text/javascript">
+    let init = false;
+    onmessage = evt => {
+      if (!init) {
+        init = true;
+
+        let iframe = document.getElementById("iframe1");
+        iframe.src = evt.data.iframeUrl;
+
+        iframe.addEventListener("load", e => {
+          iframe.contentWindow.postMessage(JSON.stringify(evt.data), "*");
+        });
+
+        return;
+      }
+
+      opener.postMessage(evt.data, "*");
+    };
+  </script>
+</head>
+
+<body>
+  <iframe id="iframe1"></iframe>
+</body>
+
+</html>