Hookup unhandledrejection and error events even the application is not running under development mode

ui/app.js

@@ -294,6 +294,7 @@ function initializeClient() {
 
   if (process.env.NODE_ENV === "development") {
     console.log("Currently in Development environment");
+  }
 
   window.addEventListener("unhandledrejection", function(e) {
     console.error("Error:", e);
@@ -302,7 +303,6 @@ function initializeClient() {
   window.addEventListener("error", function(e) {
     console.error("Error:", e);
   });
-  }
 
   landingRoot.parentNode.removeChild(landingRoot);