Online/offline status

- LS

Chrome

  1. 135
  2. 136
  3. 137
  4. 138
  5. 139
  6. 140
  7. 141

Edge

  1. 135
  2. 136
  3. 137
  4. 138

Safari

  1. 18.2
  2. 18.3
  3. 18.4
  4. 18.5
  5. 26.0
  6. TP

Firefox

  1. 137
  2. 138
  3. 139
  4. 140
  5. 141
  6. 142
  7. 143

Opera

  1. 114
  2. 115
  3. 116
  4. 117

IE

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

Chrome for Android

  1. 138

Safari on iOS

  1. 18.2
  2. 18.3
  3. 18.4
  4. 18.5
  5. 26.0

Samsung Internet

  1. 25
  2. 26
  3. 27
  4. 28

Opera Mini

  1. all

Opera Mobile

  1. 11.5
  2. 12
  3. 12.1
  4. 80

UC Browser for Android

  1. 15.5

Android Browser

  1. 4.2-4.3
  2. 4.4
  3. 4.4.3-4.4.4
  4. 138

Firefox for Android

  1. 140

QQ Browser

  1. 14.9

Baidu Browser

  1. 13.52

KaiOS Browser

  1. 2.5
  2. 3.0-3.1

"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