1 files changed, 19 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webrtc-encoded-transform/sframe-transform-readable.html b/testing/web-platform/tests/webrtc-encoded-transform/sframe-transform-readable.html
new file mode 100644
index 0000000000..2afce1b271
--- /dev/null
+++ b/testing/web-platform/tests/webrtc-encoded-transform/sframe-transform-readable.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <iframe src="." id="frame"></iframe>
+        <script>
+promise_test(async (test) => {
+    const frameDOMException = frame.contentWindow.DOMException;
+    const transform = new frame.contentWindow.SFrameTransform;
+    frame.remove();
+    assert_throws_dom("InvalidStateError", frameDOMException, () => transform.readable);
+});
+       </script>
+    </body>
+</html>