Online/offline status

- LS

Chrome

  1. 153
  2. 154
  3. 155
  4. 156
  5. 157
  6. 158
  7. 159

Edge

  1. 152
  2. 153
  3. 154
  4. 155

Safari

  1. 26.4
  2. 26.5
  3. 26.6
  4. 27
  5. 27.1
  6. 27.2
  7. TP

Firefox

  1. 156
  2. 157
  3. 158
  4. 159
  5. 160
  6. 161
  7. 162

Opera

  1. 132
  2. 133
  3. 134
  4. 135

IE

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

Chrome for Android

  1. 156

Safari on iOS

  1. 26.4
  2. 26.5
  3. 26.6
  4. 27.0
  5. 27.1
  6. 27.2

Samsung Internet

  1. 27
  2. 28
  3. 29
  4. 30

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. 156

Firefox for Android

  1. 159

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