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src/main.js

@@ -58,6 +58,12 @@ function handleRoute() {
     }
 
     // Auto-login check
+    if (localStorage.getItem('vibecoding_redirect_login') === 'true') {
+        localStorage.removeItem('vibecoding_redirect_login'); // Clear flag
+        navigateTo('instructor');
+        return;
+    }
+
     const roomCode = localStorage.getItem('vibecoding_room_code');
     const userId = localStorage.getItem('vibecoding_user_id'); // Changed key to match new logic
 

src/views/InstructorView.js

@@ -403,6 +403,7 @@ export function setupInstructorEvents() {
             const retryBtn = document.getElementById('redirect-login-btn');
             if (retryBtn) {
                 retryBtn.addEventListener('click', () => {
+                    localStorage.setItem('vibecoding_redirect_login', 'true'); // Flag for main.js
                     signInWithGoogleRedirect().catch(e => alert("跳轉失敗: " + e.message));
                 });
             }