1 files changed, 29 insertions, 0 deletions
diff --git a/Base/res/html/misc/unhandledpromisetest.html b/Base/res/html/misc/unhandledpromisetest.html
new file mode 100644
index 0000000000..3838ff17dc
--- /dev/null
+++ b/Base/res/html/misc/unhandledpromisetest.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Unhandled Promise rejection with no [[ScriptOrModule]] for the current execution context</title>
+</head>
+<body>
+  <button onclick="
+    Promise.reject(new Error('Success!'));
+    window.timer = setTimeout(() => {
+      const element = document.createElement('p');
+      element.innerText = 'Did not receieve unhandledrejection event in 100ms.';
+      element.style.color = 'red';
+      document.body.appendChild(element);
+    }, 100)
+  ">
+    Click me to cause an unhandled promise rejection.
+  </button>
+
+  <script>
+    window.onunhandledrejection = (rejectionEvent) => {
+      clearTimeout(window.timer);
+      const element = document.createElement("p");
+      element.innerText = rejectionEvent.reason.message;
+      element.style.color = "green";
+      document.body.appendChild(element);
+    }
+  </script>
+</body>
+</html>