diff --git a/content/master.blade.php b/content/master.blade.php
index 934162c..26363cf 100644
--- a/content/master.blade.php
+++ b/content/master.blade.php
@@ -245,7 +245,12 @@
         }
         function isJson(str) {
             try { JSON.parse(str); }
-            catch (e) { return false; }
+            catch(e) { return false; }
+            return true;
+        }
+        function isEncoded(str){
+            try { atob(str); }
+            catch(e) { return false; }
             return true;
         }
         $(window).on('load', function(){
@@ -256,16 +261,18 @@
             let urlPath = window.location.pathname;
             let code = urlPath.split("/");
             code = code[code.length-1];
-            let productLink = atob(code);
-            if(isJson(productLink)){
-                if(objProducts.length > 0) $('#modal-confirm-product-replacement').modal('show');
-                else $('#modal-confirm-addition-of-products').modal('show');
+            if(isEncoded(code)){
+                let productLink = atob(code);
+                if(isJson(productLink)){
+                    if(objProducts.length > 0) $('#modal-confirm-product-replacement').modal('show');
+                    else $('#modal-confirm-addition-of-products').modal('show');
+                }
+                $('.btn-confirm-product-link').click(function(){
+                    objProducts = JSON.parse(productLink);
+                    updateProductsInLocalStorage();
+                    window.location.replace($('meta[name="checkout"]').attr('content'));
+                });
             }
-            $('.btn-confirm-product-link').click(function(){
-                objProducts = JSON.parse(productLink);
-                updateProductsInLocalStorage();
-                window.location.replace($('meta[name="checkout"]').attr('content'));
-            });
             updateProductsInLocalStorage();
             $(document).on('click', '.btn-remove-product', function(){
                 let productId = $(this).attr('data-id');