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NetworkError: Failed to execute 'send' on 'XML HttpRequest'

URL of experiment: Pavlovia

Description of the problem: When running the experiment on Pavlovia, I only see a blank screen and then the error shown on the screenshot.

I will be very grateful for your help!

Best, Elena

Hi Elena,

I am also having the exact same issue. Have you managed to figure it out?

Kind regards,

I had the same issue! I had no clue what was causing it, tried re-installing psychopy and switching browsers and even computers but the error persisted.
I still don’t have a clear answer as to the root cause, but the error went away when I created a new .csv file with my trials from scratch, and the experiment ran completely fine. I don’t have a good sense of what was causing the error in my existing .xlsx files but maybe try that and see if it helps you too?

Hey Awisha,

I created a new experiment and added routines step by step (one by one). So, for example, I added only one routine and tried running the experiment, then another one and tried running the experiment. This way I could figure out what I had to fix. I think, this error was somehow connected to other errors I had.
Just try to do it.

Best, Elena