diff --git a/pc4mobx/hrmSalary/pages/socialSecurityBenefits/standingBook/components/welfareRecordList.js b/pc4mobx/hrmSalary/pages/socialSecurityBenefits/standingBook/components/welfareRecordList.js
index 1dca4635..f2a355dd 100644
--- a/pc4mobx/hrmSalary/pages/socialSecurityBenefits/standingBook/components/welfareRecordList.js
+++ b/pc4mobx/hrmSalary/pages/socialSecurityBenefits/standingBook/components/welfareRecordList.js
@@ -49,7 +49,7 @@ class WelfareRecordList extends Component {
           const payload = {
             billMonth: params.billMonth,
             paymentOrganization: params.paymentOrganizationId,
-            fsdSbjndw: params.fsdSbjndw,
+            fsdSbjndw: params.fsdSbjndw || "",
             type: id === "VIEW" ? "detail" : ""
           };
           window.open(`/spa/hrmSalary/static/index.html#/main/hrmSalary/socialSecurityBenefits/standingBookDetail?${convertToUrlString(payload)}`);
diff --git a/pc4mobx/hrmSalary/util/url.js b/pc4mobx/hrmSalary/util/url.js
index d2802383..9efb536b 100644
--- a/pc4mobx/hrmSalary/util/url.js
+++ b/pc4mobx/hrmSalary/util/url.js
@@ -26,7 +26,7 @@ export const convertToUrlString = (data) => {
   const _result = [];
   for (const key in data) {
     const value = data[key];
-    if (value.constructor === Array) {
+    if (Object.prototype.toString.call(value) === "[object Array]") {
       value.forEach(function (_value) {
         _result.push(key + "=" + _value);
       });