JavaScript: Improve control flow of development mode function

public/js/app.js

@@ -241,23 +241,23 @@ $(document).ready(function() {
 		$.get('/admin/toggle-development-mode').done(function(data)
 		{
 			const response = JSON.parse(data);
-			if (response.success == true) {
-				if (response.result.value == 'on') {
-					e.target.checked = true;
-					$('#develop-enabled').css('visibility', 'visible');
-					$('#develop-remaining').text('03:00:00');
-				}
-				else {
-					e.target.checked = false;
-					$('#develop-enabled').css('visibility', 'hidden');
-				}
+			if (response.success == false) {
+				console.log(data);
+				alert("Development mode could not be enabled!");
+				return;
+			}
 
-				alert("Development mode has been set to: '" + response.result.value + "'");
+			if (response.result.value == 'on') {
+				e.target.checked = true;
+				$('#develop-enabled').css('visibility', 'visible');
+				$('#develop-remaining').text('03:00:00');
 			}
 			else {
-				console.log(data);
-				alert("Development mode could not be enabled!")
+				e.target.checked = false;
+				$('#develop-enabled').css('visibility', 'hidden');
 			}
+
+			alert("Development mode has been set to: '" + response.result.value + "'");
 		});
 	});