Fonto Why & How: Why is my operation not working!?

In this weekly series, Martin describes a question that was raised by a Fonto developer, how it was resolved and why Fonto behaved like that in the first place. This week, a developer reached out with a screenshot of a generic error: something about an Uncaught (in promise): undefined. In this blog post, we’re going to go over the debugOperation option and how to use it. Let’s start with finding which operation actually caused it. We got a screenshot of a stack trace and the editor, so that was easy.