title: Puppeteer's page.goto(url) fails, I want to close the page/exit gracefully so my other JEST tests can continue to run
body: <p>I have a test suite with Jest and Puppeteer hooked up for headless e2e testing. I set it up so running 'npm test' will run my Puppeteer tests first and then will run the rest of my tests. </p>
  
  <p>Let's say the URL is unavailable. e.g. no internet connection or I forgot to serve it up. I want to exit my Puppeteer tests gracefully and not crash and burn.</p>
  
  <pre><code>page.goto('http://localhost:8000')
  // above will fail and I want a way to know it failed to load that.
  </code></pre>