Booting up CDP server on mac doesn't work with playwright

[j93hahn]

Using version f12e9b6

I run ./lightpanda serve --host 127.0.0.1 --port 9222, then attempt to connect to the server with this simple playwright code:

import playwright from "playwright";

const browser = await playwright.chromium.connectOverCDP(
  "ws://127.0.0.1:9222,
);
const context = await browser.newContext();
const page = await context.newPage();

and it either hangs indefinitely, or returns an error message like this:

Page.route: Target page, context or browser has been closed

The situation is the same with python playwright. But with puppeteer, it seems the code works fine out-of-the-box.

[j93hahn]

It does appear to be working on linux/amd64 though... interesting, I got it working on mac by forcing lightpanda to connect to a headless chromium instance via

chromium --headless=new --remote-debugging-port=9222

[krichprollsch]

Hello @j93hahn,

It appears the browser expect instruction from your script once you opened the connection.

Try with:

import playwright from "playwright";

const browser = await playwright.chromium.connectOverCDP("ws://127.0.0.1:9222");

const context = await browser.newContext();

const page = await context.newPage();
await page.goto('https://lightpanda.io/');
console.log(await page.title());

await page.close();
await context.close();

// Turn off the browser to clean up after ourselves.
await browser.close();

I get

$ node playwright/issue.js
Lightpanda | The headless browser

[krichprollsch]

I'm closing the issue as resolved. Feel free to re-open if you have updates.