Unspecified Javascript error: bug in Chrome back

URL of experiment: Experiment day 2 [PsychoPy]

Description of the problem: Hi all! I am once again running into the bug where some Chrome users have problems with running experiments in Pavlovia. I have already tried changing line 21 in index.html as specified in the crib sheet, which works perfectly fine with my other experiment. However, with this new experiment this doesn’t seem to fix it. As far as I can remember, it ran fine two months ago, and I have not changed anything since then. I can still pilot the experiment, although it doesn’t seem to update when I commit changes, and running the experiment doesn’t work on my laptop at all. I use Psychopy 2020.2 :).

Does anyone have any other tips?