Service Workers
- CRMethod that enables applications to take advantage of persistent background processing, including hooks to enable bootstrapping of web applications while offline.
IE
- 5.5 - 10: Not supported
- 11: Not supported
Edge
- 12 - 14: Not supported
- 15 - 16: Disabled by default
- 17 - 100: Supported
- 101: Supported
Firefox
- 2 - 32: Not supported
- 33 - 43: Disabled by default
- 44: Supported
- 45: Supported
- 46 - 51: Supported
- 52: Supported
- 53 - 59: Supported
- 60: Supported
- 61 - 67: Supported
- 68: Supported
- 69 - 99: Supported
- 100: Supported
- 101 - 102: Supported
Chrome
- 4 - 39: Not supported
- 40 - 44: Partial support
- 45 - 100: Supported
- 101: Supported
- 102 - 104: Supported
Safari
- 3.1 - 11: Not supported
- 11.1 - 15.3: Supported
- 15.4: Supported
- TP: Supported
Opera
- 9 - 26: Not supported
- 27 - 31: Partial support
- 32 - 85: Supported
- 86: Supported
- 87: Supported
Safari on iOS
- 3.2 - 11.2: Not supported
- 11.3 - 15.3: Supported
- 15.4: Supported
Opera Mini
- all: Not supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 101: Partial support
Opera Mobile
- 10 - 12.1: Not supported
- 64: Partial support
Chrome for Android
- 101: Supported
Firefox for Android
- 100: Supported
UC Browser for Android
- 12.12: Supported
Samsung Internet
- 4 - 15.0: Supported
- 16.0: Supported
QQ Browser
- 10.4: Supported
Baidu Browser
- 7.12: Partial support
KaiOS Browser
- 2.5: Not supported
Details on partial support can be found on is ServiceWorker Ready?