title: Flutter WebView retain access token
body: <p>I am building a flutter application that will at some point within the app open a webview visiting
  web-pages behind my SSO application.</p>
  
  <p>As of right now when the user logs in using the <strong>flutter_AppAuth</strong> plugin ([<a href="https://pub.dev/packages/flutter_appauth][1]" rel="noreferrer">https://pub.dev/packages/flutter_appauth][1]</a>) , the user is given a token that
  is stored within the application.</p>
  
  <p>When the user clicks a link to a secured site, the application opens the URL in a web-view (<em><a href="https://pub.dev/packages/flutter_webview_plugin" rel="noreferrer">https://pub.dev/packages/flutter_webview_plugin</a></em>) with the token placed within the header and is verified as a user that is logged in. My problem is once on this page, clicking another link on the web-page forces me to the sso login page even though the token had been accepted previously.</p>
  
  <p>My question is how do I ensure that the token is stored and is used as the user navigates the web-page to ensure they don't have to login again?</p>