Cannot connect to existing Chrome Page

When trying to connect to a Chrome (Version 75.0.3770.80 (Official Build) (64-bit)) Page using the following. I get: Error: Protocol error (Target.getBrowserContexts): Not allowed at Promise

const puppeteer = require('puppeteer-core');

(async () => {
  const browserWSEndpoint = 'ws://127.0.0.1:9222/devtools/page/500056D65CF0AEE17C01DF068E34B21E';

  try {
    const browser = await puppeteer.connect({browserWSEndpoint, ignoreHTTPSErrors: true});
  } catch (error) {
    console.error(error);
  }
  console.log('hello')
})();

Thank You

[dheerajbhaskar]

For anyone else who encounters this, you need to go to the following url to get the browserWSEndpoint:

http://127.0.0.1:<debugging port>/json/version

[one10]

It seems like this has changed in some point in history because I have some code based on Puppeteer 1.4.0 where you can connect to a page just fine. Breaks for me after upgrading to anything after 1.10.0. Just saying. If you’re struggling with an older code base, this may be why.