Server-sent events

- LS

Method of continuously sending data from a server to the browser, rather than repeatedly requesting it (EventSource interface, used to fall under HTML5)

IE

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

Edge

  1. 12
  2. 13
  3. 14
  4. 15

Firefox

  1. 50
  2. 51
  3. 52
  4. 53
  5. 54
  6. 55
  7. 56

Chrome

  1. 55
  2. 56
  3. 57
  4. 58
  5. 59
  6. 60
  7. 61

Safari

  1. 9
  2. 9.1
  3. 10
  4. 10.1
  5. TP

Opera

  1. 41
  2. 42
  3. 43
  4. 44
  5. 45
  6. 46

iOS Safari

  1. 9.0-9.2
  2. 9.3
  3. 10.0-10.2
  4. 10.3

Opera Mini

  1. all

Android Browser

  1. 4.2-4.3
  2. 4.4
  3. 4.4.3-4.4.4
  4. 56

Blackberry Browser

  1. 7
  2. 10

Opera Mobile

  1. 11.5
  2. 12
  3. 12.1
  4. 37

Chrome for Android

  1. 57

Firefox for Android

  1. 52

IE Mobile

  1. 10
  2. 11

UC Browser for Android

  1. 11.4

Samsung Internet

  1. 4

QQ Browser

  1. 1.2