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diff --git a/testing/web-platform/tests/webrtc/RTCPeerConnection-add-track-no-deadlock.https.html b/testing/web-platform/tests/webrtc/RTCPeerConnection-add-track-no-deadlock.https.html
new file mode 100644
index 0000000000..81e3b73643
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+++ b/testing/web-platform/tests/webrtc/RTCPeerConnection-add-track-no-deadlock.https.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>RTCPeerConnection addTrack does not deadlock</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="RTCPeerConnection-helper.js"></script>
+<script>
+  'use strict';
+
+  // This test sets up two peer connections using a sequence of operations
+  // that triggered a deadlock in Chrome. See https://crbug.com/736725.
+  // If a deadlock is introduced again, this test times out.
+  promise_test(async t => {
+    const pc1 = new RTCPeerConnection();
+    t.add_cleanup(() => pc1.close());
+    const stream = await getNoiseStream(
+      {audio: false, video: true});
+    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
+    const videoTrack = stream.getVideoTracks()[0];
+    pc1.addTrack(videoTrack, stream);
+    const offer = await pc1.createOffer();
+    await pc1.setLocalDescription(offer);
+    const pc2 = new RTCPeerConnection();
+    t.add_cleanup(() => pc2.close());
+    const srdPromise = pc2.setRemoteDescription(offer);
+    pc2.addTrack(videoTrack, stream);
+    // The deadlock encountered in https://crbug.com/736725 occured here.
+    await srdPromise;
+    await pc2.createAnswer();
+  }, 'RTCPeerConnection addTrack does not deadlock.');
+</script>