Thread:VisualEditor/Feedback/parsoidserver-http-bad-status: 404 when using visual editor on nds-nl wiki/reply (4)

Thank you for this message! The problem was with Parsoid getting a bad list of Wikipedia languages. It received "nds_nl" when the actual name is "nds-nl". An emergency fix is being deployed ASAP, and then the Parsoid team is going to create a permanent solution that should prevent this from happening in the future. Thank you, again, for letting us know about this serious problem.