WebGazer + LimeSurvey integration

Hello, for a university project I'm trying to integrate this library into a LimeSurvey template.
LimeSurvey gives the option to add scripts/libraries to the survey template so I imported it ...but now, when I open the console, I get these errors (shown in the first pic).
I wouldn't wanna open an issue but I really don't know what the problem could be and since you're the guys that made this library, maybe you know what the cause might be?
I tried importing it on w3schools and a local server just to see if anything changed and it works fine, then I tried to see if anything would change with another browser (Edge) and it still won't work, but with it there's even a different issue: the webcam won't start (screen of the errors in the second pic)
I am sorry if this is not a good issue but I really don't know who to ask and I'm pretty stuck

Thank you in advance 👉🏻👈🏻

Start by reproducing the WebGazer integration in a LimeSurvey template and inspect the console errors shown in the attached screenshots. Compare the behavior with the w3schools and local-server tests and with Edge; done means identifying a reproducible cause and documenting a fix or confirmed compatibility limitation.