| <!doctype html> | |
| <title>Observe the connection from a closed tab "Going Away"</title> | |
| <script> | |
| 'use strict'; | |
| let protocol = location.protocol.replace('http', 'ws'); | |
| let url = protocol + '//' + location.host + '/close-observer?role=observer'; | |
| // Do connection test. | |
| let ws = new WebSocket(url); | |
| const id = setTimeout(() => { | |
| console.log('close_observer.html had timeout'); | |
| document.title = 'FAIL'; | |
| }, 3000); | |
| ws.onmessage = e => { | |
| clearTimeout(id); | |
| console.log('close_observer.html got message: ' + e.data); | |
| document.title = (e.data === 'OK' ? 'PASS' : 'FAIL'); | |
| ws.onclose = null; | |
| } | |
| ws.onclose = () => { | |
| clearTimeout(id); | |
| console.log('close_observer.html saw close with no message'); | |
| document.title = 'FAIL'; | |
| } | |
| </script> |