If browser cache is not disabled during development, updates don't always appear on page refresh

[chassq]

Ran through the get started sample. One thing I ran into was when I went to do the ToDo list portion I did not initially see the ToDo list nav link in the nav menu when I rendered the page. The browser was caching the first hit so removing the cached browser history allowed the todo list nav link to show up. I am using latest Chrome as the browser. I guess there is a question about cache busting here??

[MihaMarkic]

I see similar behaviour. Run counter component sample, then change the increase value step to i.e. 2 and run sample again. It will always go with += 1 and won't pick the changes unless the browser cache is disabled.

[miroslavp]

Is there any workaround for this? It is very annoying :( I have to stop the debugging and start over again in order for my changes to reflect on the screen. Ctrl+R is not working.

[floreseken]

See: dotnet/blazor@b64218f

[MihaMarkic]

@miroslavp Why don't you simply disable browser caching for the time being?

[danroth27]

Blazor currently does not supporting debugging and running under the debugger will actually cause issues when using Chrome. For now you should run without the debugger (Ctrl-F5) and refresh the browser as needed.

[MihaMarkic]

@danroth27 I was not running under the debugger.

[danroth27]

@MihaMarkic Which browser and version are you using?

[MihaMarkic]

@danroth27 Using current Firefox x64 59.0.2 on Windows. Currently, if I enable browser caching I get this error when refreshing:

Error: System.TypeLoadException: Could not find method due to a type load error

If I disable caching, then it works. So I can't even repro the original issue. I'm quite sure it wasn't updating the sample as well (without disabling cache).

These are packages I'm using

<ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.0-preview2-30230" PrivateAssets="all" />
    <PackageReference Include="Microsoft.AspNetCore.Blazor.Browser" Version="0.1.0" PrivateAssets="all" />
    <PackageReference Include="Microsoft.AspNetCore.Blazor.Build" Version="0.1.0" />
    <PackageReference Include="Righthand.Immutable" Version="1.0.2" />
    <PackageReference Include="Righthand.SharpRedux" Version="1.0.3" />
    <PackageReference Include="System.Threading.Tasks.Dataflow" Version="4.8.0" />
    <DotNetCliToolReference Include="Microsoft.AspNetCore.Blazor.Cli" Version="0.1.0" />
  </ItemGroup>

[danroth27]

@MihaMarkic What is the target framework for the Blazor project?

[MihaMarkic]

<PropertyGroup>
    <TargetFramework>netstandard2.0</TargetFramework>
    <RunCommand>dotnet</RunCommand>
    <RunArguments>blazor serve</RunArguments>
    <LangVersion>7.2</LangVersion>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.0-preview2-30230" PrivateAssets="all" />
    <PackageReference Include="Microsoft.AspNetCore.Blazor.Browser" Version="0.1.0" PrivateAssets="all" />
    <PackageReference Include="Microsoft.AspNetCore.Blazor.Build" Version="0.1.0" />
    <PackageReference Include="Righthand.Immutable" Version="1.0.2" />
    <PackageReference Include="Righthand.SharpRedux" Version="1.0.3" />
    <PackageReference Include="System.Threading.Tasks.Dataflow" Version="4.8.0" />
    <DotNetCliToolReference Include="Microsoft.AspNetCore.Blazor.Cli" Version="0.1.0" />
  </ItemGroup>

[danroth27]

You're target framework looks fine.

So I can't even repro the original issue

Yeah, without a repro there's not much we can do here, but if you see this problem again, please do let us know.

[MihaMarkic]

@danroth27 While I can't repro the original issue, I can repro that it doesn't even load now when cache is enabled. Btw I'm using Release config and Ctrl+F5 to start.

[MihaMarkic]

@danroth27 Here, I've made a video for you. First refresh is with cache enabled, second is with cache disabled.