Fix check if password is empty on register page

src/app/components/register/register.component.ts

@@ -39,6 +39,11 @@ export class RegisterComponent implements OnInit {
   }
 
   passwordSame(pwd: string, pwd2: string) {
+    if (!pwd) {
+      this.errorOccurred = true;
+      this.errorMessage = 'please enter a password';
+      return false;
+    }
     if (pwd === pwd2) {
       return true;
     } else {