Reply To: Preloading resources by experiment list

[Jeremy]

My bad, I tested my code at https://farm.pcibex.net/, where __counter_value_from_server__ is accessible from the start, which is not the case at https://expt.pcibex.net.

If you’re running your study on the expt Farm (or on the original Ibex Farm for that matter) you’ll need a little trick to detect when __counter_value_from_server__ is being set:

let myOwnCounter = 0, preloadZipSent = false;
Object.defineProperty(window, '__counter_value_from_server__', {
    set(v){
        myOwnCounter = v;
        if (preloadZipSent) return;
        preloadZipSent = true;
        switch (v % 4) {
          case 0:
            PreloadZip("https://my.server/path/to/zip_a.zip");
            break;
          case 1:
            PreloadZip("https://my.server/path/to/zip_b.zip");
            break;
          case 2:
            PreloadZip("https://my.server/path/to/zip_c.zip")
            break;
          default:
          case 3:
            PreloadZip("https://my.server/path/to/zip_d.zip")
            break;
        }
    }, 
    get(){
        return myOwnCounter;
    }
});

Jeremy