Uncaught TypeError: Cannot read property 'classList' of null

[avivmu]

https://developer.mozilla.org/en-US/docs/Web/CSS/inline-size

When clicking on the gap between two examples I get this shown in console:

Uncaught TypeError: Cannot read property 'classList' of null
    at Object.findParentChoiceElem (editor-css.js?v=f6294ac:1)
    at HTMLElement.<anonymous> (editor-css.js?v=f6294ac:1)

I marked some part where it happens for easier understanding

[JavascriptLearner815]

This is still affecting all pages that reference classList and is thus still relevant. Please give this more attention and add it to a project.

[JavascriptLearner815]

👏 for the creator of this issue for pointing this out, I'd've never known! 😄

[tannerdolby]

I reckon this can be closed with #587 landing in mdn/bob @schalkneethling 🎉

[JavascriptLearner815]

This is still open?

[tannerdolby]

This is still open?

Unfortunately, no. It looks like this issue was fixed with #587 being merged!

This is ready to be closed! @schalkneethling