Thank you. This didn’t seem to make any difference, assuming I did it correct.
I run AMPPS which is a similar local web server to WAMP, MAMP etc. I am suspecting that it might be the culprit, because if I upload my overlay to my online web server, the code loads the data instantly as you would expect it to.
I’m actually not getting any error (All error reports are turned on as far as I know in AMPPS), I simply seem to get no data, it’s all blank.