diff --git a/testing/web-platform/tests/mediacapture-record/MediaRecorder-destroy-script-execution.html b/testing/web-platform/tests/mediacapture-record/MediaRecorder-destroy-script-execution.html
new file mode 100644
index 000000000000..1710d238b6e3
--- /dev/null
+++ b/testing/web-platform/tests/mediacapture-record/MediaRecorder-destroy-script-execution.html
@@ -0,0 +1,47 @@
+<!doctype html>
+<meta charset="utf-8">
+<html>
+<title>MediaRecorder destroy script execution context</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<iframe src="support/MediaRecorder-iframe.html" id="subFrame-stop" name="subFrameStop"></iframe>
+<iframe src="support/MediaRecorder-iframe.html" id="subFrame-allTrackEnded" name="subFrameAllTrackEnded"></iframe>
+<script>
+    var iframeForCallingStop = document.getElementById('subFrame-stop');
+    var iframeForAllTrackEnded = document.getElementById('subFrame-allTrackEnded');
+
+    var testForCallingStop = async_test('MediaRecorder will not fire the stop event when stop() is called and the script execution context is going away');
+    var testForAllTrackEnded = async_test('MediaRecorder will not fire the stop event when all tracks are ended and the script execution context is going away');
+
+    iframeForCallingStop.onload = function(e) {
+        subFrameStop.window.prepareForTest();
+        const recorder = subFrameStop.window.recorder;
+        recorder.ondataavailable = testForCallingStop.step_func(blobEvent => {
+            iframeForCallingStop.remove();
+            testForCallingStop.step_timeout(testForCallingStop.step_func_done(), 0);
+        });
+        recorder.onstop = testForCallingStop.unreached_func('Unexpected stop event');
+        recorder.start();
+        assert_equals(recorder.state, 'recording', 'MediaRecorder has been started successfully');
+        subFrameStop.window.drawSomethingOnCanvas();
+        recorder.stop();
+    };
+
+    iframeForAllTrackEnded.onload = function(e) {
+        subFrameAllTrackEnded.window.prepareForTest();
+        const recorder = subFrameAllTrackEnded.window.recorder;
+        recorder.ondataavailable = testForAllTrackEnded.step_func(blobEvent => {
+            iframeForAllTrackEnded.remove();
+            testForAllTrackEnded.step_timeout(testForAllTrackEnded.step_func_done(), 0);
+        });
+        recorder.onstop = testForAllTrackEnded.unreached_func('Unexpected stop event');
+        recorder.start();
+        assert_equals(recorder.state, 'recording', 'MediaRecorder has been started successfully');
+        subFrameAllTrackEnded.window.drawSomethingOnCanvas();
+        subFrameAllTrackEnded.window.video.getVideoTracks()[0].stop();
+    };
+
+</script>
+</body>
+</html>
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diff --git a/testing/web-platform/tests/mediacapture-record/MediaRecorder-stop.html b/testing/web-platform/tests/mediacapture-record/MediaRecorder-stop.html
new file mode 100644
index 000000000000..8e05fc5491d8
--- /dev/null
+++ b/testing/web-platform/tests/mediacapture-record/MediaRecorder-stop.html
@@ -0,0 +1,50 @@
+<!doctype html>
+<html>
+<head>
+    <title>MediaRecorder Stop</title>
+    <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<canvas id="canvas" width="200" height="200">
+</canvas>
+<script>
+    function createVideoStream() {
+        let canvas = document.getElementById("canvas");
+        canvas.getContext('2d');
+        return canvas.captureStream();
+    }
+
+    async_test(t => {
+        let video = createVideoStream();
+        let recorder = new MediaRecorder(video);
+        recorder.onstop = t.step_func(errorEvent => {
+            assert_equals(errorEvent.type, 'stop', 'the error type should be stop');
+            assert_true(errorEvent.isTrusted, 'isTrusted should be true when the event is created by C++');
+            assert_equals(recorder.state, "inactive", "MediaRecorder has been stopped when all tracks are ended");
+            t.done();
+        });
+        assert_equals(video.getVideoTracks().length, 1, "video mediastream starts with one track");
+        recorder.start();
+        assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
+        video.getVideoTracks()[0].stop();
+    }, "MediaRecorder will stop recording and fire a stop event when all tracks are ended");
+
+    async_test(t => {
+        let video = createVideoStream();
+        let recorder = new MediaRecorder(video);
+        recorder.onstop = t.step_func(errorEvent => {
+            assert_equals(errorEvent.type, 'stop', 'the error type should be stop');
+            assert_true(errorEvent.isTrusted, 'isTrusted should be true when the event is created by C++');
+            assert_equals(recorder.state, "inactive", "MediaRecorder has been stopped when stop() is called");
+            t.done();
+        });
+        recorder.start();
+        assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
+        recorder.stop();
+        assert_equals(recorder.state, "recording", "State should remain the same until stop event is fired");
+    }, "MediaRecorder will stop recording and fire a stop event when stop() is called");
+</script>
+</body>
+</html>
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diff --git a/testing/web-platform/tests/mediacapture-record/support/MediaRecorder-iframe.html b/testing/web-platform/tests/mediacapture-record/support/MediaRecorder-iframe.html
new file mode 100644
index 000000000000..6e70acf4862c
--- /dev/null
+++ b/testing/web-platform/tests/mediacapture-record/support/MediaRecorder-iframe.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Start a MediaRecorder</title>
+<html>
+<body>
+<canvas id="canvas" width="200px" height="200px"></canvas>
+<script>
+    var context;
+    var recorder;
+    var video;
+
+    function createVideoStream() {
+        const canvas = document.getElementById("canvas");
+        context = canvas.getContext('2d');
+        return canvas.captureStream();
+    }
+
+    function drawSomethingOnCanvas() {
+        context.fillStyle = "red";
+        context.fillRect(0, 0, 10, 10);
+    }
+
+    function prepareForTest() {
+        video = createVideoStream();
+        recorder = new MediaRecorder(video);
+    }
+</script>
+</body>
+</html>
\ No newline at end of file
