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Firebase Authentication is a comprehensive authentication system that supports various authentication methods, including email/password, phone number, and federated identity providers like Google, Facebook, and Twitter. It is designed to make it easy for developers to add secure authentication to their applications without needing to manage the complexities of authentication protocols.
When using Firebase Auth, you might encounter the error code auth/invalid-continue-uri
. This error typically appears when attempting to redirect users to a specific URL after a successful authentication process. The error message indicates that the continue URL provided in the request is invalid.
The auth/invalid-continue-uri
error occurs when the continue URL, which is supposed to redirect users after authentication, is not properly formatted or is not a valid URL. This can happen if the URL is malformed, contains illegal characters, or is not whitelisted in your Firebase project settings.
Ensure that the continue URL is correctly formatted. It should include the protocol (e.g., https://
) and a valid domain. Use a URL validator tool to check the format.
Go to your Firebase console and navigate to Authentication > Sign-in method. Under the Authorized domains section, ensure that the domain of your continue URL is listed. If not, add it to the list.
Review your code to ensure that the continue URL is being passed correctly. Here's an example of how to set the continue URL in a Firebase Auth request:
firebase.auth().signInWithRedirect(provider).then(function() {
return firebase.auth().getRedirectResult();
}).then(function(result) {
if (result.credential) {
// This gives you a Google Access Token.
var token = result.credential.accessToken;
// The signed-in user info.
var user = result.user;
// Redirect to the continue URL
window.location.assign('https://yourapp.com/continue');
}
}).catch(function(error) {
console.error(error);
});
For more information on handling Firebase Auth errors, visit the Firebase Auth Error Documentation. To learn more about configuring authorized domains, check out the Firebase Redirect Best Practices.
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