WPT
This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.
Spec: MediaStream Recording ↗
Runs: Chrome 155.0.8038.0 (wpt@397d01d8e, 2026-09-02) | Firefox 157.0a1 (wpt@397d01d8e, 2026-09-02) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-5f6fa (wpt@b1a7025f8, 2026-09-02) | Servo Servo 0.5 (wpt@2ccd2cbf8, 2026-09-01) | Blitz 7727414ca (wpt@a95401e4e, 2026-09-02)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 92.6%704/760 | 91.6%696/760 | 83.8%637/760 | 0.3%2/760 | 0.3%2/760 | 0.0%0/760 |
| MediaRecorder-canvas-media-source.https.html?mimeType=video | 60.0%9/15 | 93.3%14/15 | 100.0%15/15 | 0.0%0/15 | 0.0%0/15 | 0.0%0/15 |
| MediaRecorder-events-and-exceptions.html?mimeType=video | 100.0%15/15 | 93.3%14/15 | 46.7%7/15 | 0.0%0/15 | 0.0%0/15 | 0.0%0/15 |
| MediaRecorder-pause-resume.html?mimeType=video | 80.0%56/70 | 97.1%68/70 | 77.1%54/70 | 0.0%0/70 | 0.0%0/70 | 0.0%0/70 |
| MediaRecorder-peerconnection.https.html?kinds=audio&mimeType=audio | 66.7%4/6 | 100.0%6/6 | 66.7%4/6 | 0.0%0/6 | 0.0%0/6 | 0.0%0/6 |
| MediaRecorder-peerconnection.https.html?kinds=video&mimeType=video | 60.0%6/10 | 100.0%10/10 | 80.0%8/10 | 0.0%0/10 | 0.0%0/10 | 0.0%0/10 |
| MediaRecorder-peerconnection.https.html?kinds=video,audio&mimeType=video | 85.2%46/54 | 100.0%54/54 | 74.1%40/54 | 0.0%0/54 | 0.0%0/54 | 0.0%0/54 |
| MediaRecorder-stop.html?mimeType=video | 100.0%165/165 | 84.8%140/165 | 81.8%135/165 | 0.0%0/165 | 0.0%0/165 | 0.0%0/165 |
| legacy | 100.0%16/16 | 100.0%16/16 | 100.0%16/16 | 0.0%0/16 | 0.0%0/16 | 0.0%0/16 |
| passthrough | 80.0%4/5 | 60.0%3/5 | 20.0%1/5 | 0.0%0/5 | 0.0%0/5 | 0.0%0/5 |