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blazor.web.js and blazor.server.js request return 404 when Project OutputType is WinExe #64451

@jinjaeyeon

Description

@jinjaeyeon

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Describe the bug

Our team has internally built and is using a tooling application with .NET 8.0 and Blazor. Because the app needs to run in the background on each individual’s Windows machine, we set the OutputType to WinExe.

With the release of .NET version 10.0, we started upgrading the app, but every page was rendering as a blank page. We tried various solutions we found, but none had any effect.

However, after removing the <OutputType>WinExe</OutputType> option from the .csproj—an option we had assumed would be harmless—and testing again, the pages began displaying correctly.

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