Symptoms:
Enable the js aggregation in admin/config/development/performance then go to edit a custom formatter like admin/structure/formatters/list/example_php_image/edit.
Firebug will report two missing files:
http://example.com/admin/structure/formatters/list//langs/en.js
http://example.com/admin/structure/formatters/list//langs/en.jsIt seems that editarea don't manage to retrieve the correct URL for its scripts.
Comments
Comment #1
decipheredThanks for the bug report. Fixed and committed.