Resolving the Blazor JS routing Error in ASP.NET 6 Applications

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Fixing the Blazor JS Routing Issue in ASP.NET 6 Applications

If you are developing an ASP.NET 6 application and have encountered the frustrating issue of a static blazor js not found error, you are not alone. This problem often arises when routing disrupts the expected file paths, particularly when integrating Blazor components. In this post, we'll explore the root cause of this issue and provide a straightforward solution to get your Blazor application running smoothly.

The Problem

You are trying to incorporate a server-side Blazor component into your ASP.NET 6 application, but navigating to the corresponding page leads to difficulties in locating the necessary static blazor JavaScript files. Here’s a summary of the symptoms:

The static Blazor file is not found, resulting in 404 errors.

Only the Blazor server-side render mode is affected; other modes like static and ServerPrerendered work fine.

The console might display logs like:

[[See Video to Reveal this Text or Code Snippet]]

And upon interaction (like searching), you might see:

[[See Video to Reveal this Text or Code Snippet]]

Understanding the Routing Issue

The routing mechanism in your Blazor application is likely treating the paths incorrectly, which is causing the static files not to load. When the routing is not configured correctly, it can lead to issues with file resolution and result in 404 errors because the application is looking for the static files in the wrong locations.

The Solution

Steps to Implement the Solution

Add the <base> tag inside the <head> section as follows:

[[See Video to Reveal this Text or Code Snippet]]

Save the file and run your application.

Code Example

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Feel free to test your changes now, and enjoy a smooth development experience with your Blazor components!

If you have further questions or run into additional issues while working with Blazor or ASP.NET, don’t hesitate to seek help from the community or refer to the official documentation.