On February 11th, 2021, at 10:30 p.m. ET, a service deployment introduced a bug which prevented Knowledge Tags from serving any content. Engineers rolled back the change and restored service on February 12th at 3:10 a.m. ET.
A change to our Javascript compilation tool caused the content to be improperly served by the Knowledge Tags server.
We updated the server to correctly serve the optimized Javascript, and we will be improving our acceptance testing suite to cover this class of issues.