URL of experiment: Experiment | Luxin_Yu/experiment1 (pavlovia.org)
Description of the problem: cannot access online experiment when using the “run the study online” option in Builder
Is this when you try to run the study from psychopy 
or it is when you press “run” on your experiment project page?
Hi Becca,
Thanks a lot for the message!
This happened when I tried to run the study from PsychoPy Builder directly. On the project page, however, because the experiment is currently “piloting”, when I click on the “pilot experiment” button, also nothing shows up but a blank page… Do you know why this is happening?
does that blank page have any text in it? like a 404 error or “initializing experiment”
Thanks!
Becca
Oh wait! I see you said 403 - ok that means the js didn’t compile for your experiment for some reason. In your experiment please can you try to click the 
button and resync to pavlovia? then try and run again
Actually, no… the “403 Forbidden - nginx” was the only message available on the screen… ;-(