.NET 10 Support

[jonpryor]

What would you like to be added? 💡

Context: unoplatform/uno#19934
Context: unoplatform/uno#21140

When trying to get unoplatform/uno building and running atop .NET 10, the Tests - WebAssembly Skia tests are failing because they want blazor.boot.json:

[7347:7347:0725/172242.291270:INFO:CONSOLE:4] "MONO_WASM: Failed to load config file blazor.boot.json SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON
Error: Failed to load config file blazor.boot.json SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON
    at xe (http://localhost:8000/_framework/dotnet.js:4:21471)
    at async http://localhost:8000/_framework/dotnet.js:4:31096
    at async Bootstrapper.bootstrap ([http://localhost:8000/package_cad083c022126debd2f8488f4d32c39d75cb8f7b/uno-bootstrap.js:159:47)",](http://localhost:8000/package_cad083c022126debd2f8488f4d32c39d75cb8f7b/uno-bootstrap.js:159:47)%22,) source: http://localhost:8000/_framework/dotnet.js (4)

blazor.boot.json is no longer generated in .NET 10; see also: dotnet/aspnetcore#59456

At minimum, all places which reference blazor.boot.json will need to be updated, including but not limited to::

• Uno.Wasm.Bootstrap/src/Uno.Wasm.Bootstrap/Embedded/service-worker.js

  Line 83 in 4ee6887

  console.error('[ServiceWorker] Error processing blazor.boot.json:', e.message);

• Uno.Wasm.Bootstrap/src/Uno.Wasm.Bootstrap/ts/types/dotnet/index.d.ts

  Line 318 in 4ee6887

  * Typically blazor.boot.json

• Uno.Wasm.Bootstrap/src/Uno.Wasm.VersionChecker/UnoVersionExtractor.cs

  Line 211 in 4ee6887

  if (await GetFile(http, new(_siteUri, "_framework/blazor.boot.json")) is { } frameworkFile)

• Uno.Wasm.Bootstrap/src/Uno.Wasm.VersionChecker/UnoVersionExtractor.cs

  Line 215 in 4ee6887

  else if (await GetFile(http, new(_siteUri, "blazor.boot.json")) is { } baseFile)

Why is this needed? 🤔

.NET 10 support.

Renderer 🎨

• Skia
• Native

For which platforms 📱💻🖥️

WebAssembly

Anything else we need to know? 💬

No response

[ajpinedam]

Hey @jonpryor, I'd be happy to help with this. I will do a first pass this afternoon to remove this file as a dependency.

[jeromelaban]

@jonpryor @ajpinedam it's already supported in the 10.x version of the bootstrapper, on the uno dev feed. The CI runs daily with the daily build of net10, though I noticed that the build failed because of some nbgv tool setup issue.

The remaining references will need to be changed also, but they're not as important yet.

[ajpinedam]

Thanks for the information @jeromelaban . I was getting ready to look into this. I will check on the nbgv issue you mentioned