Media Library AJAx error null on image style

Problem/Motivation

When adding new assets through Media Library form widget, it throws an error if the media library image style is not available.

Steps to reproduce

1- Add field media entity reference to a custom block type or a content type.
2- Use Media Library as form widget.
3- Add a new media entity
4- See error on the console.

Proposed resolution

The solution is already available for 9.2.x-dev https://www.drupal.org/project/drupal/issues/3056841 →

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet