AntiforgeryValidationException preventing Blazor app to start on IIS Web App. (case sensitive url)

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#57,920 opened on Sep 17, 2024 17 comments 0 reactions 0 assignees View on GitHub

area-dataprotection Needs: Attention :wave:

Description

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Describe the bug

The problem start when deploy my Blazor aspnet core 8 app on IIS like the image below.

![image](https://github.com/user-attachments/assets/605597b0-6811-4792-a0a3-9b33acbecc50)

If I use the url in browser with the same name in the base tag everything works.

![image](https://github.com/user-attachments/assets/26b24cb1-4971-4ad6-96c5-cbf3df53338b)

If the url is correct but with the web app name with different case I receve the error below. For example portal instead of Portal

![image](https://github.com/user-attachments/assets/8714dc81-9709-4188-9953-133d8424406b)

could you help me?
I think the url should be case insentitive in the management of the Antiforgery.

thanks

### Expected Behavior

I think the url should be case insentitive in the management of the Antiforgery.

### Steps To Reproduce

_No response_

### Exceptions (if any)

_No response_

### .NET Version

net 8

### Anything else?

_No response_

This issue has not been assessed yet.