Online/offline status

Events to indicate when the user's connected (online and offline events) and the navigator.onLine property to see current status.

IE Edge Firefox Chrome Safari Opera iOS Safari Opera Mini Android Browser Blackberry Browser Opera Mobile Chrome for Android Firefox for Android IE Mobile UC Browser for Android Samsung Internet QQ Browser Baidu Browser
49
56 9.3 4.4
14 52 57 10 10.0-10.2 4.4.3-4.4.4 4
11 15 53 58 10.1 44 10.3 all 56 10 37 57 52 11 11.4
See notes:
  • 1
5 1.2 7.12
54 59 TP 45
55 60 46
56 61

Notes

"online" does not always mean connection to the internet, it can also just mean connection to some network.

Early versions of Chrome and Safari always reported "true" for navigator.onLine

Links