Modal forms within the editor receive error message upon submission.
1) Enable core Workspaces module
2) Switch to any other workspace than default.
3) Try to submit a field in the backend modal form.
Add $form_state("workspace_safe", TRUE); to src/Form/ComponentFormBase.php at line 297.
As I am not 100 % sure what security implications this could have it would be great if someone with more workspace-knowledge could advise if ythis could lead to security issues.
Active
2.1
Code
Linking to https://www.drupal.org/project/mercury_editor/issues/3495098 📌 Support for Workspaces Active , as Workspaces compatibility in Layout Paragraphs is required for compatibility with Mercury Editor.