title: what are the appium capabilities for webviews in android?
body: <p>I have tried using below capabilities</p>
  <pre><code>{
        maxInstances: 1,
        browserName: '',
        appiumVersion: '1.18.2',
        platformName: 'android',
        platformVersion: '10.0',
        deviceName: 'device',
        webviewConnectTimeout: '90000',
        chromeOptions: {args: ['--windowTypes=webview']},
        safariLogAllCommunication: true,
        enableWebviewDetailsCollection: true,
        ensureWebviewsHavePages: true,
        showChromedriverLog: true,
        app: './android/app/build/outputs/apk/',
        noReset: true,
        autoWebview: true,
  }
  </code></pre>
  <p>but still not able to fetch the webview url. Below is the snippet of my code</p>
  <pre><code>let contexts = driver.getContexts();
  console.log(contexts);
  driver.switchContext('WEBVIEW_be.belgacom.hello');
  console.log(driver.getPageSource());
  console.log(driver.getUrl());
  </code></pre>