I have a website built on Hugo and while implementing new functionality I made a mistake by improperly closing the tag. Strangely, this bug didn't show up in the staging environment and the
tag was fixed for users in different browsers and countries (automatically fixed by the browser I think). However, on the production server, the wrong closing tag caused the layout to break. I'm not sure which direction to investigate to get to the root of the problem. I do think this has nothing to do with hugo.
Maybe you tested using a different browser.
Validate your HTML using something like https://validator.w3.org/. p>