This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The MediaKeySystemAccess.keySystem read-only property returns a DOMString identifying the key system being used.
var keySystem = mediaKeySystemAccess.keySystem;
| Specification | Status | Comment |
|---|---|---|
| Encrypted Media Extensions The definition of 'keySystem' in that specification. | Recommendation | Initial definition |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 42 | 13 | ? | ? | ? | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 43 | 42 | Yes | ? | ? | ? | 4.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemAccess/keySystem