fix: Solve the problem that the popAlert component pops up repeatedly

source/js/utils.js

@@ -120,7 +120,10 @@ Stun.utils = Stun.$u = {
       error: 'times-circle'
     };
 
-    if (!$('.stun-alert')[0]) {
+    if ($('.stun-message').length !== 0) {
+      $('.stun-message').remove();
+    }
+
     var faPrefix = CONFIG.fontawesome.prefix;
     var $alert = $(
       '<div class="stun-message">' +
@@ -132,8 +135,6 @@ Stun.utils = Stun.$u = {
     );
 
     $('body').append($alert);
-    }
-
     $(document).ready(function () {
       $('.stun-alert')
         .velocity('stop')