Browser issues: exp runs online using Mac, but not Windows

[Jamie]

After much experimentation, I have determined this has nothing to do with particular browser or computer.

The black screen / browser crash I was experiencing was caused by having an ImageStim with an opacity set to update every frame. See:

Image Stim opacity - set every frame - causes black screen / crash online

URL of experiment: https://run.pavlovia.org/j.adams/subjective-judgments-for-photographic-stimuli-2/html/ Description of the problem: Hi all, I kept encountering a black screen and/or browser crash (in Chrome and Firefox) - always about 40 seconds into my experiment - which was seemingly not associated with any particular routine. After MUCH experimentation trying to narrow down the cause (JS console didn’t give much indication), I have discovered this happens when setting the opacity of an …