Checkpoint React frontend migration

backend/test_session_debug.py

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+#!/usr/bin/env python3
+"""
+Debug redirect on AI playground page.
+"""
+
+import re
+
+import httpx
+
+BASE_URL = "http://localhost:8000"
+
+
+def main():
+    print("Debugging redirect on AI playground page...")
+
+    with httpx.Client(base_url=BASE_URL, timeout=30.0) as client:
+        # Login first
+        response = client.get("/admin/login")
+        match = re.search(r'name="csrf_token" value="([^"]+)"', response.text)
+        csrf_token = match.group(1) if match else ""
+
+        response = client.post(
+            "/admin/login",
+            data={
+                "username": "admin",
+                "password": "admin123",
+                "csrf_token": csrf_token,
+            },
+            follow_redirects=True,
+        )
+        print(f"Logged in, URL: {response.url}")
+
+        # Get AI playground page without following redirects
+        print("\nGetting AI playground page without following redirects...")
+        response = client.get(
+            "/admin/questions/1/generate?tab=review", follow_redirects=False
+        )
+        print(f"Status: {response.status_code}")
+        print(f"Location header: {response.headers.get('location', 'None')}")
+
+        # Follow the redirect
+        if response.headers.get("location"):
+            redirect_url = response.headers["location"]
+            print(f"\nFollowing redirect to: {redirect_url}")
+            response = client.get(redirect_url, follow_redirects=True)
+            print(f"Final status: {response.status_code}")
+            print(f"Final URL: {response.url}")
+
+            # Check for forms
+            post_forms = re.findall(
+                r'<form[^>]*method="post"[^>]*>', response.text, re.IGNORECASE
+            )
+            print(f"\nFound {len(post_forms)} POST forms")
+
+            # Look for CSRF token
+            csrf_inputs = re.findall(
+                r'<input[^>]*name="csrf_token"[^>]*>', response.text, re.IGNORECASE
+            )
+            if csrf_inputs:
+                print(f"Found {len(csrf_inputs)} CSRF token inputs:")
+                for inp in csrf_inputs[:3]:
+                    print(f"  {inp}")
+            else:
+                print("No CSRF token inputs found")
+
+
+if __name__ == "__main__":
+    main()