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MudBlazor / MudBlazor

Blazor Component Library based on Material design with an emphasis on ease of use. Mainly written in C# with Javascript kept to a bare minimum it empowers .NET developers to easily debug it if needed.
http://mudblazor.com
MIT License
7.96k stars 1.27k forks source link

mudElementRef is null in headless prerendering (react-snap) #3428

Closed Mr-Technician closed 1 year ago

Mr-Technician commented 2 years ago

Bug type

Other

Component name

No response

What happened?

I'm running a few Blazor WASM applications with static prerendering with react-snap. An example is this test page here: https://pages2.nielsen.tech/

Notice it loads instantly due to the prerender, and then silently loads the wasm app. This worked until I updated Blazor and I started getting errors like the following: image

It looks like mudElementRef is null, likely because react-snap is running headless. The result is a runtime error that causes the Github Action to fail.

The latest version that works is 5.0.15.

Expected behavior

The app should prerender without errors.

Reproduction link

https://github.com/Mr-Technician/TimeKeeper

Reproduction steps

This is difficult to reproduce as it requires react-snap.

This is the line in question in my Github Actions yaml: https://github.com/Mr-Technician/TimeKeeper/blob/38ce49094ff7611bcd25f914623341610fec9967/.github/workflows/main.yml#L30

I am willing to walk someone through the process to get to the bottom of this.

Relevant log output

No response

Version (bug)

5.1.x, 5.2x, 6.0x

Version (working)

5.0.15

What browsers are you seeing the problem on?

Other

On what operating system are you experiencing the issue?

Other

Pull Request

Code of Conduct

Mr-Technician commented 1 year ago

Closing this as it is outdated and no longer relevant to me and no one else has reported the issue.