Blazor Server Application hosted on Azure with SignalR. Issue with blazor.server.js

Arun Siripuram 801 Reputation points
2022-11-18T06:58:22.037+00:00

Blazor Server Application hosted on Azure with SignalR. Application is accessed by 200K users globally, we are facing issue with one specific user not able to login to Blazor Server App. Anything to do with proxies are firewalls, unable to track.

Error: Failed to complete negotiation with the Server: Type Error: Failed to fetch - blazor.server.js. Appreciate responses.

Blazor
Blazor
A free and open-source web framework that enables developers to create web apps using C# and HTML being developed by Microsoft.
1,385 questions
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
120 questions
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  1. Ryan Hill 25,661 Reputation points Microsoft Employee
    2022-11-21T03:35:30.217+00:00

    @Arun Siripuram , if all but one out of 200K users can't access your Blazor app, what's special about this particular user? You're stating that you aren't able to track this customer's request to see if they're behind a firewall or proxy server? Are you able to reach out to this customer directly to get that information?

    To determine what's going on with this particular client, I advise going through the client request troubleshooting guide. If you need additional help with your findings, please comment down below.

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