diff --git a/authz/authz.go b/authz/authz.go
index 1ee7ef5c..883d731a 100644
--- a/authz/authz.go
+++ b/authz/authz.go
@@ -68,6 +68,7 @@ m = (r.subOwner == p.subOwner || p.subOwner == "*") && (r.subName == p.subName |
 p, built-in, *, *, *, *, *
 p, *, *, POST, /api/register, *, *
 p, *, *, POST, /api/login, *, *
+p, *, *, GET, /api/get-app-login, *, *
 p, *, *, POST, /api/logout, *, *
 p, *, *, GET, /api/get-account, *, *
 p, *, *, POST, /api/login/oauth/access_token, *, *
diff --git a/web/src/App.js b/web/src/App.js
index 77cc9ad6..8eaed485 100644
--- a/web/src/App.js
+++ b/web/src/App.js
@@ -334,7 +334,7 @@ class App extends Component {
     if (this.isDoorPages()) {
       return (
         <Switch>
-          <Route exact path="/login/oauth/authorize" render={(props) => this.renderLoginIfNotLoggedIn(<Face type={"code"} {...props} />)}/>
+          <Route exact path="/login/oauth/authorize" render={(props) => <Face type={"code"} {...props} />}/>
         </Switch>
       )
     }
diff --git a/web/src/auth/AuthCallback.js b/web/src/auth/AuthCallback.js
index bb32d3ca..8c1d6b5c 100644
--- a/web/src/auth/AuthCallback.js
+++ b/web/src/auth/AuthCallback.js
@@ -17,6 +17,7 @@ import {Spin} from "antd";
 import {withRouter} from "react-router-dom";
 import * as AuthBackend from "./AuthBackend";
 import * as Util from "./Util";
+import {authConfig} from "./Auth";
 
 class AuthCallback extends React.Component {
   constructor(props) {
@@ -29,10 +30,29 @@ class AuthCallback extends React.Component {
     };
   }
 
+  getResponseType() {
+    // "http://localhost:8000"
+    const authServerUrl = authConfig.serverUrl;
+
+    // For example, for Casbin-OA, realRedirectUri = "http://localhost:9000/login"
+    // realRedirectUrl = "http://localhost:9000"
+    const params = new URLSearchParams(this.props.location.search);
+    const realRedirectUri = params.get("redirect_uri");
+    const realRedirectUrl = new URL(realRedirectUri).origin;
+
+    // For Casdoor itself, we use "login" directly
+    if (authServerUrl === realRedirectUrl) {
+      return "login";
+    } else {
+      return "code";
+    }
+  }
+
   componentWillMount() {
     const params = new URLSearchParams(this.props.location.search);
     let redirectUri = `${window.location.origin}/callback/${this.state.applicationName}/${this.state.providerName}/${this.state.method}`;
     const body = {
+      type: this.getResponseType(),
       application: this.state.applicationName,
       provider: this.state.providerName,
       code: params.get("code"),
@@ -43,10 +63,19 @@ class AuthCallback extends React.Component {
     const oAuthParams = Util.getOAuthGetParameters();
     AuthBackend.login(body, oAuthParams)
       .then((res) => {
-        if (res.status === "ok") {
-          window.location.href = '/';
+        if (res.status === 'ok') {
+          const responseType = this.getResponseType();
+          if (responseType === "login") {
+            // this.props.onLoggedIn();
+            Util.showMessage("success", `Logged in successfully`);
+            Util.goToLink("/");
+          } else if (responseType === "code") {
+            const code = res.data;
+            Util.goToLink(`${oAuthParams.redirectUri}?code=${code}&state=${oAuthParams.state}`);
+            // Util.showMessage("success", `Authorization code: ${res.data}`);
+          }
         } else {
-          Util.showMessage("error", res?.msg);
+          Util.showMessage("error", `Log in failed：${res.msg}`);
         }
       });
   }
diff --git a/web/src/auth/Face.js b/web/src/auth/Face.js
index 96acdac2..901b1586 100644
--- a/web/src/auth/Face.js
+++ b/web/src/auth/Face.js
@@ -86,11 +86,12 @@ class Face extends React.Component {
     AuthBackend.login(values, oAuthParams)
       .then((res) => {
         if (res.status === 'ok') {
-          if (this.state.type === "login") {
+          const responseType = this.state.type;
+          if (responseType === "login") {
             this.props.onLoggedIn();
             Util.showMessage("success", `Logged in successfully`);
             Util.goToLink("/");
-          } else if (this.state.type === "code") {
+          } else if (responseType === "code") {
             const code = res.data;
             Util.goToLink(`${oAuthParams.redirectUri}?code=${code}&state=${oAuthParams.state}`);
             // Util.showMessage("success", `Authorization code: ${res.data}`);
@@ -221,7 +222,7 @@ class Face extends React.Component {
           {
             application.providerObjs.map(provider => {
               return (
-                <a href={Provider.getAuthUrl(application, provider, "signup")}>
+                <a key={provider.displayName} href={Provider.getAuthUrl(application, provider, "signup")}>
                   <img width={30} height={30} src={Provider.getAuthLogo(provider)} alt={provider.displayName} style={{margin: "3px"}} />
                 </a>
               );