fixed some bugs

js/background.js

@@ -18,15 +18,19 @@ chrome.runtime.onMessage.addListener(function (request, sender, response) {
 	} else if (request.command == "updateTabs") {
 		updateTabs();
 	} else if(request.command == "updateCourseList"){
-		//updated;
+		chrome.tabs.query({}, function (tabs) {
+			for (var i = 0; i < tabs.length; i++) {
+				chrome.tabs.sendMessage(tabs[i].id, {
+					command: "updateCourseList"
+				});
+			}
+		});
 	} else {
 		const xhr = new XMLHttpRequest();
 		const method = request.method ? request.method.toUpperCase() : "GET";
 		xhr.open(method, request.url, true);
 		xhr.onload = () => response(xhr.responseText);
 		xhr.onerror = () => response(xhr.statusText);
-		console.log(request);
-		console.log(sender);
 		if (method == "POST") {
 			xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 		}
@@ -192,7 +196,7 @@ function updateTabs() {
 	});
 }
 
-setInterval(updateStatus, 60*1000);
+setInterval(updateStatus, 2*60*1000);
 
 function updateStatus() {
 	chrome.storage.sync.get('savedCourses', function (data) {
@@ -216,6 +220,6 @@ function updateStatus() {
 		chrome.storage.sync.set({
 			savedCourses: courses
 		});
-		console.log(courses);
+		console.log("updated status' and registerlinks");
 	});
 }

js/calendar.js

@@ -65,8 +65,8 @@ $(function () {
                 $("#prof").html(`with <span style='font-weight:bold;'>${uncapProf}</span>`);
 
                 let status = savedCourses[currindex].status;
-                if (status.includes("closed") || status.includes("cancelled")) {
-                    $("#register").text("Class Closed").css("background-color", "#FF5722");
+                if (status.includes("closed") || status.includes("cancelled") || !status) {
+                    $("#register").text("Cannot Register").css("background-color", "#FF5722");
                 } else if (status.includes("waitlisted")) {
                     $("#register").text("Join Waitlist").css("background-color", "#FF9800");
                 } else {

js/popup.js

@@ -90,8 +90,8 @@ $(document).ready(function () {
 		});
 		let status = courses[$(this).closest("li").attr("id")].status;
 
-		if (status.includes("closed") || status.includes("cancelled")) {
-			$(this).find("#register").text("Class Closed").css("background-color","#FF5722");
+		if (status.includes("closed") || status.includes("cancelled")|| !status) {
+			$(this).find("#register").text("Cannot Register").css("background-color","#FF5722");
 		}
 		else {
 			if(status.includes("waitlisted")){