Created
September 17, 2019 21:55
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| // Time between pages | |
| const TIMEOUT = 5 * 1000; | |
| // https://chromedevtools.github.io/devtools-protocol/ | |
| const BASE = 'http://localhost:9222'; | |
| const open = url => fetch(`${BASE}/json/new?${url}`).then(r => r.json()); | |
| const activate = target => fetch(`${BASE}/json/activate/${target.id}`); | |
| const ws = target => new Promise(resolve => (new WebSocket(target.webSocketDebuggerUrl).onopen = e => resolve(e.target))); | |
| const reload = target => ws(target).then(c => c.send(JSON.stringify({id: 0, method: 'Page.reload'}))); | |
| const timeout = (ms) => new Promise(resolve => setTimeout(() => resolve(), ms)); | |
| (async () => { | |
| const TARGETS = await Promise.all(URLs.map(open)); | |
| for (let i = 0; ; i = (i + 1) % TARGETS.length) { | |
| // activate next page | |
| await activate(TARGETS[i]); | |
| // refresh upcoming page in the background | |
| reload(TARGETS[(i + 1) % TARGETS.length]); | |
| // wait | |
| await timeout(TIMEOUT); | |
| } | |
| })(); |
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