I’ve been working with Azure AD B2C custom policies lately, and I’ve hit a bit of a wall. So, here’s the situation: I’m trying to set up a flow for user authentication, but every time I try to log in or sign up, I end up getting hit with this “invalid OAuth response” error. It’s so frustrating!
I’ve double-checked my application settings, and everything seems to be configured correctly in the Azure portal. The redirect URIs match, and the client secrets look good. I’ve even gone through my custom policy files multiple times to see if there are any typos or misconfigurations, but I can’t seem to find anything obvious.
I’ve also looked into the logs for more clues. There are some entries about invalid requests, but they’re pretty vague, and they don’t shed much light on what exactly is causing the problem. It feels like I’m chasing my tail here! I’ve tried a few different approaches; for instance, I played around with the scopes and tried adding some from the standard OAuth flows. Still no luck, though.
I’m wondering if this could be related to how the claims are being processed in the custom policies or if there’s something funky with the token response. I read somewhere that if your application doesn’t properly handle the OAuth flow, that could also trigger similar issues. But honestly, I’m just at a total loss right now.
Have any of you encountered a similar problem before? If so, what did you do to debug it? I can’t be the only one who’s run into an invalid OAuth response while working with Azure AD B2C. Any insights or suggestions, big or small, would really help me out. It would be great to hear how you tackled the issue or if you have any tools or methods that made troubleshooting easier for you. Thanks a ton in advance for any help!
Oh man, that sounds super frustrating! I totally get how annoying those “invalid OAuth response” errors can be, especially when you think everything is set up right.
Have you tried checking if your policy files are in the correct order? Sometimes, the execution sequence can mess things up, and that might lead to weird responses. Also, make sure your claims are properly mapped. Even a small typo can throw things off!
Another thing you could check is your API permissions. Sometimes, it’s easy to overlook whether your application has the right permissions set up. Double-check the scopes for your application to ensure everything lines up with what you’re trying to access.
If you’re seeing “invalid requests” in the logs, it could be helpful to log the actual requests being sent. Tools like Fiddler or Postman might help you see what’s going on there. You might spot something that looks off in the request or response.
Lastly, I’d suggest looking into the Azure AD B2C sample policies if you haven’t already. They often help to see what a working setup looks like and can sometimes highlight what’s missing or misconfigured in your custom policies.
Keep at it! It can be tough to debug OAuth issues, but you’re definitely not alone in this. Good luck! 🙌
The “invalid OAuth response” error you are encountering during user authentication in Azure AD B2C can be particularly frustrating, especially after verifying your application settings and redirect URIs. One common pitfall in custom policies is the misconfiguration of claim transformations or technical profiles that handle the OAuth flow. It’s crucial to ensure that the output claims match what your application expects and that any transformations are defined correctly. You might also want to check if your policies are properly handling the scopes and whether the API is correctly exposing the required permissions, as incorrect scopes could lead to invalid responses. Reviewing the claims schema in your custom policies might unveil potential mismatches or omissions that are causing this error.
In addition to checking the policy files and logs, using tools like Fiddler or any other network tracing tool can help you monitor the HTTP requests in real-time. This allows you to see the exact responses from Azure AD B2C, which may provide insights that are not captured in the logs. It might also be useful to enable verbose logging in your policy to get more detailed error messages. Furthermore, consider testing a simple policy without any customizations to isolate the issue. If the basic flow works, you can iteratively add back your customizations to narrow down what’s causing the invalid response. Ultimately, community forums and the official Microsoft documentation can be invaluable resources for troubleshooting specific configurations or scenarios others might have faced.