Question about millisecond timing of online experiments.
For confirmation of correct timing, do @psychopy, @GorillaPsyc, etc. rely on the Date functions? If so, how fail-safe is this? I see that Firefox's privacy.resistFingerprinting allows users to reduce its precision.

Do @psychopy etc. check for variables like that? For researchers who cite the results of calling the Date functions as confirmation of timing where milliseconds matter (e.g., motion perception studies), I don't know how much confidence to have. @esdalmaijer @EvershedJo @peircej

I know that papers like https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0112033 show fabulous timing, but don't always check how robust this is to browser settings and people running lots of things in the background, as they are wont to do.