diff --git a/web/src/auth/ResultPage.js b/web/src/auth/ResultPage.js
index 59520065..3c8624e0 100644
--- a/web/src/auth/ResultPage.js
+++ b/web/src/auth/ResultPage.js
@@ -66,7 +66,7 @@ class ResultPage extends React.Component {
           extra={[
             <Button type="primary" key="login" onClick={() => {
               let linkInStorage = sessionStorage.getItem("loginURL")
-              if (linkInStorage != "") {
+              if (linkInStorage !== null && linkInStorage !== "") {
                   Setting.goToLink(linkInStorage)
               } else {
                   Setting.goToLogin(this, application)