1 files changed, 25 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/html_send-beacon-late-iframe-request.html b/devtools/client/netmonitor/test/html_send-beacon-late-iframe-request.html
new file mode 100644
index 0000000000..3d567bd5d9
--- /dev/null
+++ b/devtools/client/netmonitor/test/html_send-beacon-late-iframe-request.html
@@ -0,0 +1,25 @@
+<!-- Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/ -->
+<!doctype html>
+
+<html>
+  <head>
+    <meta charset="utf-8"/>
+    <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
+    <meta http-equiv="Pragma" content="no-cache" />
+    <meta http-equiv="Expires" content="0" />
+    <title>Network Monitor test page</title>
+  </head>
+
+  <body>
+    <p>Do a late beacon request on iframe removal</p>
+
+    <script type="text/javascript">
+    "use strict";
+
+    window.onunload = () => {
+      navigator.sendBeacon("beacon_late_request");
+    };
+    </script>
+  </body>
+</html>