Contrib.social

Cannot read properties of null (reading 'dataset')

Open on Drupal.org →
Created on 5 March 2025, about 2 months ago

Problem/Motivation

Users cannot drag and drop components between regions. A javascript error appears in console:
Cannot read properties of null (reading 'dataset') related to move_errors.js in this module line:
const outgoingRegion = el.closest('.js-lpb-region').dataset.regionUuid;

I'm not sure why this line is failing as I can see a parent with the js-lpb-region using chrome inspect element...I'm guessing this code is executing out of sequence and that class does not exist when this code is getting run.

Steps to reproduce

Upgraded to v1.0.3
Drupal core 10.4.1 or newer (haven't checked older versions).
Layout Paragraphs 2.1.1
Mercury Editor 2.2.1

Workaround

Disable this module or Downgrade to 1.0.2

Proposed resolution

The "outgoingRegion" variable is referenced later in the script..move the declaration into the same code block as the numeric check (line 29). My site currently does not use the numeric checks.

🐛 Bug report
Status

Active

Version

1.0

Component

Code

Created by

🇺🇸United States sbubaron

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