In the Jellyfish UI we highlight code blocks in messages using the `highlight.js` package. Our implementation tried to highlight the code block using the language specified, however if the language was unknown, an error would be thrown. This would lead to an uncaught exception that prevented the UI from rendering correctly and causing it to display a large error message.

An update to rendition was made that wrapped the rendered in a try…catch block, falling back to trying to highlight the code block automatically: see https://github.com/balena-io-modules/rendition/pull/1138/files .