Flutter Auth0: Stuck at Waiting for connection from debug service on chrome

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1

I want to use auth0 in the web while using flutter.

The docs from auth0 (Auth0 Flutter (Web) SDK Quickstarts: Add login to your Flutter app) say to include this line of code in the index.html:

<script src="https://cdn.auth0.com/js/auth0-spa-js/2.0/auth0-spa-js.production.js" defer></script>

But if I include that and start in chrome I get this message while the chrome tab that opened up is all white:

Flutter: Waiting for connection from debug service on Chrome...

This a clean project with and no other changes happend to any settings files, only the index.html.

The body part of the index.html:

<body>
  <script src="https://cdn.auth0.com/js/auth0-spa-js/2.0/auth0-spa-js.production.js" defer></script>
  <script src="flutter_bootstrap.js" async></script>
</body>

I have no errors or logs available it only tells the message from above.

This error only happens if I start in debug mode. Release mode works sometimes.

Any ideas on how to fix this?

3

Hi @MeshApps, and sorry for the late reply!

While I cannot identify the problem from your snippet alone, since you mentioned this is a clean project, I suggest downloading the sample Flutter (Web) app from the Auth0 Dashboard and using it as an example. I will also provide you with a snippet that shows how the index.html is set up in the sample app.

<!DOCTYPE html>
<html>
<head>
  [...]
  <!-- This script adds the flutter initialization JS code -->
  <script src="flutter.js" defer></script>
  <script src="https://cdn.auth0.com/js/auth0-spa-js/2.0/auth0-spa-js.production.js" defer></script>
</head>
<body>
  <script>
    window.addEventListener('load', function(ev) {
      // Download main.dart.js
      _flutter.loader.loadEntrypoint({
        serviceWorker: {
          serviceWorkerVersion: serviceWorkerVersion,
        },
        onEntrypointLoaded: function(engineInitializer) {
          engineInitializer.initializeEngine().then(function(appRunner) {
            appRunner.runApp();
          });
        }
      });
    });
  </script>
</body>
</html>

Please let me know if there is more I can help you with!
Teodor.

4

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