Do you have to perform variable/text concatenation like this within a trial? I’m struggling a bit with constructing URL text to pass into my preloadzip function. Ideally I’d be able to insert the value back from getURLParameter (I’d imagine this is a variable and not text?) into some text like “myURL_” + getURLParameter(“withsquare”) +”.zip”, but I always seem to get that invalid URL message in my log…