Storybook: [v6.0.0-beta.30] blank canvas glitch

[Kosai106]

Describe the bug
I've found a way to trigger a visual glitch which stops the canvas and docs from rendering.

To Reproduce
Steps to reproduce the behavior:

1. Visit a Storybook on v6.0.0-beta.30 (I haven't tested others)
2. Click on ... and then About your Storybook
3. Attempt to visit a story again

Expected behavior
The same behavior as 5.3 is expected - To see my stories after clicking this button.

Screenshots

System:

System:
    OS: macOS 10.15.5
    CPU: (8) x64 Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
  Binaries:
    Node: 12.13.1 - ~/.nvm/versions/node/v12.13.1/bin/node
    Yarn: 1.13.0 - /usr/local/bin/yarn
    npm: 6.12.1 - ~/.nvm/versions/node/v12.13.1/bin/npm
  Browsers:
    Chrome: 83.0.4103.97
    Firefox: 76.0.1
    Safari: 13.1.1

[shilman]

cc @ndelangen @kylesuss

[ndelangen]

Yeah I can confirm, this is a bug.

@Kosai106 would you be able to help fix this with a PR?

[Kosai106]

For sure @ndelangen, I'll try to dig in tonight.

[ndelangen]

Awesome, if you need help getting set up, LMK!

[stale[bot]]

Hi everyone! Seems like there hasn't been much going on in this issue lately. If there are still questions, comments, or bugs, please feel free to continue the discussion. Unfortunately, we don't have time to get to every issue. We are always open to contributions so please send us a pull request if you would like to help. Inactive issues will be closed after 30 days. Thanks!

[Tomastomaslol]

I took a quick look at this and I was able to recreate the behaviour in v6.0.0-beta.30, but was unable to recreate it in 6.0.0-rc.28.

Behavouir in v6.0.0-beta.30

Behavouir in v6.0.0-rc.28

If my understanding of the reported issue is correct I believe this issue can be marked as resolved.

[ndelangen]

I'm rather confident this is fixed in the 6.0.0 release, please re-open if you see this still happens.