File size: 1,367 Bytes
c61f7ed | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | // quick probe — read state of the renderer
const list = await (await fetch('http://127.0.0.1:9222/json/list')).json()
const tgt = list.find(t => t.type === 'page' && t.url.startsWith('http'))
console.log('target:', tgt?.url)
if (!tgt) process.exit(1)
const ws = new WebSocket(tgt.webSocketDebuggerUrl)
let id = 0
const pending = new Map()
ws.addEventListener('message', ev => {
const m = JSON.parse(ev.data)
if (m.id != null && pending.has(m.id)) {
pending.get(m.id)(m)
pending.delete(m.id)
}
})
await new Promise(r => ws.addEventListener('open', r))
const send = (method, params = {}) =>
new Promise(r => {
const i = ++id
pending.set(i, r)
ws.send(JSON.stringify({ id: i, method, params }))
})
const r = await send('Runtime.evaluate', {
expression: `({
url: location.href,
title: document.title,
rootChildren: document.getElementById('root')?.children.length ?? 0,
rootInner: (document.getElementById('root')?.innerHTML ?? '').slice(0, 300),
hasComposer: !!document.querySelector('[data-slot="composer-rich-input"]'),
bootStage: (document.querySelector('[data-slot*="boot"]')?.getAttribute('data-slot')) ?? null,
bodyText: document.body.innerText.slice(0, 300),
errorCount: window.__errors?.length ?? 'n/a'
})`,
returnByValue: true
})
console.log('raw:', JSON.stringify(r, null, 2))
ws.close()
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