1. Server-sent events

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

  2. eventsource api

  3. eventsource api: close

  4. eventsource api: `error` event

  5. eventsource api: `eventsource()` constructor

  6. eventsource api: `eventsource()` constructor: cors support (`withcredentials`)

  7. eventsource api: `message` event

  8. eventsource api: onerror

  9. eventsource api: onmessage

  10. eventsource api: onopen

  11. eventsource api: `open` event

  12. eventsource api: readystate

  13. eventsource api: url

  14. eventsource api: withcredentials

  15. eventsource api: available in workers

  16. messageevent api: source: returns `messageeventsource`