RCTFatalException: Unhandled JS Exception: TypeError: Cannot read property 'getEditWrapperProps' of undefined This error is ...: Unhandled JS Exception: TypeError: Cannot read property 'getEditWrapperProps' of undefined

[sentry-io]

RCTFatalException: Unhandled JS Exception: TypeError: Cannot read property 'getEditWrapperProps' of undefined This error is ...: Unhandled JS Exception: TypeError: Cannot read property 'getEditWrapperProps' of undefined

[derekblank]

I was able to reproduce this on both platforms following the steps above, but it seems like a rare circumstance. I did not note any other sentry events that weren't from internal testing, but I could have missed them within the grouped Sentry issue.

I traced the exception back to this code in block.native.js, where blockType.getWrapperEditProps was being accessed when blockType did not exist. I then noted the web implementation adds logic to check if blockTypes exists before getting wrapperProps.

The fix proposed in WordPress/gutenberg#56846 prevents the crash and improves alignment with web behavior. I'm wondering if it's the best fix, however, as we haven't encountered this error with other blocks. It may have something to do with the <!-- wp:jetpack/paywall /--> block name, and these changes to unregister this block when the postType is a page: Automattic/jetpack@014b087. I tried investigating from the Jetpack side within the paywall block, but did not note anything that would resolve the crash.

@fluiddot @geriux I requested review on the PR if you have any suggestions.

[fluiddot]

The first time I spotted this crash was when checking JavaScript exceptions in version 23.7-rc-1 of the Jetpack Android app (reference).

[fluiddot]

Fixed in WordPress/gutenberg#56846.