Online/offline status

- LS

Chrome

  1. 101
  2. 102
  3. 103
  4. 104
  5. 105
  6. 106
  7. 107

Edge

  1. 101
  2. 102
  3. 103
  4. 104

Safari

  1. 15.2-15.3
  2. 15.4
  3. 15.5
  4. 15.6
  5. 16.0
  6. TP

Firefox

  1. 100
  2. 101
  3. 102
  4. 103
  5. 104
  6. 105

Opera

  1. 86
  2. 87
  3. 88
  4. 89
  5. 90

IE

  1. 8
  2. 9
  3. 10
  4. 11

Chrome for Android

  1. 104

Safari on iOS

  1. 15.0-15.1
  2. 15.2-15.3
  3. 15.4
  4. 15.5
  5. 16.0

Samsung Internet

  1. 14.0
  2. 15.0
  3. 16.0
  4. 17.0

Opera Mini

  1. all

Opera Mobile

  1. 11.5
  2. 12
  3. 12.1
  4. 64

UC Browser for Android

  1. 12.12

Android Browser

  1. 4.2-4.3
  2. 4.4
  3. 4.4.3-4.4.4
  4. 104

Firefox for Android

  1. 101

QQ Browser

  1. 10.4

Baidu Browser

  1. 7.12

KaiOS Browser

  1. 2.5

"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