Counterbalancing on Pavlovia

[wakecarter]

That’s the JS code for embedded HTML. I don’t think that’s what you want.

How to check whether a resource is available yet in online experiment?

Have a look at the download resources section of my code snippets page However, don’t use Download Resources in combination with the latest version of PsychoPy – though the test should still work Each Frame try { psychoJS.serverManager.getResource(expInfo["participant"] + ".jpg"); continueRoutine = false; } catch (e) {}