Cannot read property 'scrollTop' of undefined

[ghengeveld]

Oftentimes, parentRef will have value undefined at first render. This breaks with TypeError: Cannot read property 'scrollTop' of undefined in react-virtual 2.2.4 and above. It works fine in 2.2.3.

See for example: https://codesandbox.io/s/trusting-shamir-05gpx
Changing to react-virtual 2.2.3 fixes it.

[kentcdodds]

I think I've seen this as well. This is the change: v2.2.3...v2.2.4

Specifically, this is the line that's causing the issue: v2.2.3...v2.2.4#diff-1fdf421c05c1140f6d71444ea2b27638R74

[kentcdodds]

Made a PR to help out a bit.

[tannerlinsley]

🎉 This issue has been resolved in version 2.2.6 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[ghengeveld]

I'm running into a new issue now: Cannot read property 'addEventListener' of undefined
See https://codesandbox.io/s/storybook-search-virtualized-jyq1u?file=/src/Tree.js (change to react-virtual 2.2.6)
Might just be my code though. Virtualizing a tree is hard.

[kentcdodds]

We should probably add a test for this use case 😅