API and rpg maker mv

I've still been snagged on the implementation of API, and I just want to be sure I'm doing this right. I am using JavaScript, I first put the line of code into the header of my index, then I put all the other lines the get load, event listener and all that in a separate body section under my games body section. Within my game it will submit a score when you defeat a dark tower. So far I haven't been able to get the game to upload it just keeps timing out, but does it sound like I have the API implemented correctly? Thanks all for your help.