Firebase.initializeApp issue within Flutter Web #10006

oopchi · 2022-11-28T03:05:35Z

oopchi
Nov 28, 2022

This is actually a duplicate of #7701, but there has been no conclusion there and the issue was closed so i open another one here as I'm struggling across this exact same issue right now.

context['flutterfire_ignore_scripts'] is null, so this crashes

List get _ignoredServiceScripts {
try {
JsObject ignored =
JsObject.fromBrowserObject(context['flutterfire_ignore_scripts']); < -- crash

This issue doesn't appear (it's still there but the app still works fine) only if it's run with the --verbose options enabled (flutter run -d chrome --verbose), otherwise it crashes the app.

Here is some minor details that might help :

With this exact code, there is no issue running it on iOS and android, only web seems to suffer from this issue.

I've also tried adding the name parameter (using the project name inside firebase console) inside the Firebase.initializeApp, but the exact same error still persists.

I've tried switching to several other version of flutter only to no avails:

3.3.9
3.3.1
3.6.0-0.1.pre
3.4.0-34.1.pre
3.3.8

I've also tried to manually insert this line of code inside web/index.html
window.flutterfire_ignore_scripts = ['analytics'];

such as

<body>
  <script>
    window.flutterfire_ignore_scripts = ['analytics']; --> this one i added manually
    window.addEventListener('load', function(ev) {
      // Download main.dart.js
      _flutter.loader.loadEntrypoint({
        serviceWorker: {
          serviceWorkerVersion: serviceWorkerVersion,
        }
      }).then(function(engineInitializer) {
        return engineInitializer.initializeEngine();
      }).then(function(appRunner) {
        return appRunner.runApp();
      });
    });
  </script>
</body>

With this addition, the error shifted into:

pubspec.yaml:

  firebase_core: ^2.3.0
  firebase_auth: ^4.1.4
  cloud_firestore: ^4.1.0

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oopchi Nov 28, 2022

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oopchi
Nov 28, 2022