My custom javascript cannot pull the Canvas User ID while used in Canvas, but can in SCORM cloud

Actually, late last night we got it all working pretty good! Based on your initial code, we made the following script to run on the button when it is clicked: 

// when published as Scorm on a LMS
	let player = GetPlayer();
	let lmsAPI = findLMSAPI(this);
	let myName = lmsAPI.GetStudentID();
//player.SetVar("newUser", myName);
//console.log("newUser: "+myName);

window.open("https://s3.us-east-2.amazonaws.com/contentplayer****/Samantha/v2/index.html?context="+myName, "samantha");

//Function to connect with LMSAPI
function findLMSAPI(win) {
if (win.hasOwnProperty("GetStudentID")) {
			return win;
	}else if (win.parent == win) {
		return null;
	}else {
		return findLMSAPI(win.parent);
	}
}

This fit our goal of retrieving the user ID, and it works totally on its own with no other scripts or required button presses. It does collect all the extra stuff you showed me, but it did collect the 5 digit code from Canvas that I was looking for. 

Thank you so much for the help, I really really appreciate the assistance!