Cannot contribute a new pathfinder to the repo.

[coderodde]

I have the following issue in StackOverflow.

My fork is here.

I can see my work in the panel in the visual/index.html, yet as soon I choose it and press Start Search, the Developer tools print in the console the error message:

state-machine.min.js:1 Uncaught TypeError: PF.IDDFSFinder is not a constructor