No hot reload error UI on compilation failure with Blazor WebAssembly app

[danroth27]

Repro steps:

• Create a new Blazor WebAssembly app
• Update launchSettings.json to enable hot reload: "hotReloadProfile": "blazorwasm"
• dotnet watch
• Remove a semi-colon to cause a compilation failure

Expected: Error UI shows up with details about the compilation failure
Actual: Compilation failure printed to the console, but no error UI.

.NET SDK: 6.0.100-preview.3.21202.5

Thanks for contacting us.
We're moving this issue to the Next sprint planning milestone for future evaluation / consideration. Because it's not immediately obvious that this is a bug in our framework, we would like to keep this around to collect more feedback, which can later help us determine the impact of it. We will re-evaluate this issue, during our next planning meeting(s).
If we later determine, that the issue has no community involvement, or it's very rare and low-impact issue, we will close it - so that the team can focus on more important and high impact issues.
To learn more about what to expect next and how this issue will be handled you can read more about our triage process here.

[pranavkm]

This was resolved as part of dotnet/sdk#16701. You get the compilaton error window and the ability to continue from the error once the error is resolved.