json issue

pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>au.com.royalpay.payment</groupId>
         <artifactId>payment-parent</artifactId>
-        <version>2.1.16</version>
+        <version>2.1.20</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>manage</artifactId>

src/main/ui/static/templates/payment/v1/card_pay.js

@@ -68,6 +68,10 @@ $(function () {
             })
         }
 
+        if (ctrl.checking) {
+            return;
+        }
+        ctrl.checking = true;
         checkOrderStd();
     }
 });