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Firebase Authentication is a comprehensive authentication system that allows developers to easily integrate secure sign-in and identity management into their applications. It supports various authentication methods, including email/password, phone numbers, and popular federated identity providers like Google, Facebook, and Twitter. Firebase Auth is designed to make authentication simple and secure, enabling developers to focus on building great user experiences.
When using Firebase Auth, you might encounter the error code auth/unauthorized-domain
. This error typically presents itself when attempting to redirect users to a URL that is not authorized by your Firebase project. Users may see an error message indicating that the domain is not whitelisted, preventing them from completing the authentication process.
The auth/unauthorized-domain
error occurs when the domain of the continue URL used in the authentication process is not included in the list of authorized domains in your Firebase project settings. Firebase requires that all redirect domains be explicitly whitelisted to prevent unauthorized redirections and ensure security.
Whitelisting domains is a security measure to ensure that only trusted domains can be used for authentication redirects. This prevents malicious actors from redirecting users to unauthorized or harmful sites during the authentication process.
To resolve the auth/unauthorized-domain
error, follow these steps:
Log in to your Firebase Console and select your project. Ensure you have the necessary permissions to modify project settings.
In the Firebase Console, go to the Authentication section. You can find this in the left-hand menu under the Build category.
Within the Authentication settings, locate the Sign-in method tab. Scroll down to the Authorized domains section. Here, you can add the domain of the continue URL that is causing the error. Click on Add domain and enter the domain name.
After adding the necessary domains, ensure you save the changes. This will update your Firebase project settings to include the new authorized domains.
For more information on managing authorized domains in Firebase, refer to the official Firebase documentation. If you encounter further issues, consider visiting the Firebase Support page for additional help.
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(Perfect for DevOps & SREs)