HTTP/2 301 server: GitHub.com content-type: text/html location: https://mdn.github.io/dom-examples/launch-handler/ access-control-allow-origin: * expires: Sun, 28 Dec 2025 13:27:39 GMT cache-control: max-age=600 x-proxy-cache: MISS x-github-request-id: 28E0:3655F2:7ADB7E:89A799:69512DF2 accept-ranges: bytes age: 0 date: Sun, 28 Dec 2025 13:17:39 GMT via: 1.1 varnish x-served-by: cache-bom-vanm7210022-BOM x-cache: MISS x-cache-hits: 0 x-timer: S1766927859.112049,VS0,VE207 vary: Accept-Encoding x-fastly-request-id: 9fbaf8cbf256a8aae90824d7872fdcf81e37c56c content-length: 162 HTTP/2 200 server: GitHub.com content-type: text/html; charset=utf-8 last-modified: Tue, 09 Dec 2025 10:45:09 GMT access-control-allow-origin: * etag: W/"6937fdb5-87e" expires: Sun, 28 Dec 2025 13:27:39 GMT cache-control: max-age=600 content-encoding: gzip x-proxy-cache: MISS x-github-request-id: 62DE:123DE:7A05F3:88D337:69512DF3 accept-ranges: bytes age: 0 date: Sun, 28 Dec 2025 13:17:39 GMT via: 1.1 varnish x-served-by: cache-bom-vanm7210022-BOM x-cache: MISS x-cache-hits: 0 x-timer: S1766927859.333035,VS0,VE205 vary: Accept-Encoding x-fastly-request-id: ec08a3b18be6192bbe472732794a1cbcdaff6773 content-length: 911

🎧 Musicr 2.0

1. Install the app on a Chrome OS device.
2. Send yourself a link in a chat application of the form ?track=https://example.com/music.mp3. (You can customize https://example.com/music.mp3 for any URL pointing to an audio file). You can Copy an example link to get started.
3. Click the link in your chat app and notice how Musicr 2.0 opens and plays the track.
4. Click the link in your chat app again and notice how always just one instance of Musicr 2.0 exists.