Hotreload not working with .cshtml files

[HybridSolutions]

In a .NET 6 Core Web app mixed with Blazor components, Hotreload is not working fully. If I update anything on a Blazor component (.razor file), the browser updates in real time. If I update a .cshtml file, Hotreload happens, but changes are not updated in the browser. I have to refresh.

Is this behavior known? Any solution?

[pranavkm]

Does your app reference the RuntimeCompilation package? With dotnet-watch, we let runtime compilation take over since they're both designed to solve the same problem.

[HybridSolutions]

What is the full name of the package? It's Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation?

[pranavkm]

Yup, that's the one. You could remove the package reference if you are currently only using it during development.

[HybridSolutions]

Yup, that's the one. You could remove the package reference if you are currently only using it during development.

I don't have that package Installed. Changing some text in my .cshtml file does nothing after save. The checkmark appears in the top left corner and I get

eCM.Web (Web server): Sending updates to running application
eCM.Web (Web server): Updates applied successfully

but in the browser, nothing happens. Any ideas?

[Aquaritek]

Not much help here, but I have the same issue. Running on latest VS 2022 Preview with a brand new Blazor WASM app using the built-in templates. Selected all the fixins except docker support.

If I edit server-side code such as API controllers. Hot reload works wonders. If I edit Identity Pages they hot reload as well and automatically refresh from browser-link. If I edit literally anything on the Client side. It'll recompile, hot-reload, I get the checkbox in the browser, but the application does not change.

I have to stop, rebuild and start the application again running from the server project in this case for client-side changes to take effect.

Secondarily If I publish changes to the hosting server. None of the active clients get updated apps without doing a full browser history clean yes that's right a full browser history clean. On mobile devices that's a real PITA definitely cannot take this application I'm working on to a production environment.

I love Blazor so much though it's hard to be mad at the end of the day ;).

[SteveSandersonMS]

@pranavkm Since they aren't using runtime compilation, do you have any other suggestions on what might be wrong here, or do we need to investigate?

[Aquaritek]

@SteveSandersonMS I think this has something to do with the browser instance reloading a cached version of the application.

I have been working on this for several days and cannot get browsers (Edge, Chrome, Chromium, or Safari) to refresh the application on publish to my development server.

When you build and run from VS a completely cleaned instance of Edge or Chrome get's started that has no cached version of the application. I think this is where the issue actually lies. I do not understand the core architecture in that area though.

I do wonder though, if this has something to do with the application being setup as a PWA and the default behavior of a browser is to active any site changes after all iterations of that site have been terminated. Thoughts on this would be nice.

[mkArtakMSFT]

@SteveSandersonMS I think this has something to do with the browser instance reloading a cached version of the application.

I have been working on this for several days and cannot get browsers (Edge, Chrome, Chromium, or Safari) to refresh the application on publish to my development server.

When you build and run from VS a completely cleaned instance of Edge or Chrome get's started that has no cached version of the application. I think this is where the issue actually lies. I do not understand the core architecture in that area though.

I do wonder though, if this has something to do with the application being setup as a PWA and the default behavior of a browser is to active any site changes after all iterations of that site have been terminated. Thoughts on this would be nice.

Hi @Aquaritek. The issue you report seems different. Please file a separate issue so that we track it separately.

[mkArtakMSFT]

@HybridSolutions can you see any errors in the browser console?
Also, please share any activity from the network tab that is initiated by aspnetcore-browser-refresh.js.

Hi @HybridSolutions. We have added the "Needs: Author Feedback" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.