Update signing.html

signing.html

@@ -73,7 +73,9 @@
     <!-- Firebase SDK -->
     <script type="module">
       import { initializeApp } from 'https://www.gstatic.com/firebasejs/10.7.1/firebase-app.js';
-      import { getAuth, signInWithPopup, GoogleAuthProvider, onAuthStateChanged } from 'https://www.gstatic.com/firebasejs/10.7.1/firebase-auth.js';
+      import { getAuth, signInWithPopup,
+              signInWithRedirect,
+              GoogleAuthProvider, onAuthStateChanged } from 'https://www.gstatic.com/firebasejs/10.7.1/firebase-auth.js';
 
       // Firebase configuration - REPLACE WITH YOUR CONFIG
       const firebaseConfig = {
@@ -115,7 +117,7 @@
           loadingEl.style.display = 'block';
           errorEl.textContent = '';
 
-          const result = await signInWithPopup(auth, provider);
+          const result = signInWithRedirect(auth, provider); // await signInWithPopup(auth, provider);
           const user = result.user;
           const credential = GoogleAuthProvider.credentialFromResult(result);
           const token = await user.getIdToken();
@@ -132,7 +134,7 @@
           buttonEl.disabled = false;
           loadingEl.style.display = 'none';
           
-          let errorMessage = 'Authentication failed. Please try again.';
+          let errorMessage = `Authentication failed. Please try again.`;
           if (error.code === 'auth/popup-closed-by-user') {
             errorMessage = 'Sign-in cancelled. Please try again.';
           } else if (error.code === 'auth/popup-blocked') {