Update app.py

app.py

@@ -2,12 +2,22 @@ import io
 import time
 from PIL import Image
 from fastapi import FastAPI, UploadFile, File
+from fastapi.middleware.cors import CORSMiddleware
 from transformers import pipeline
 import uvicorn
 
 app = FastAPI()
 
-# Load model
+# Enable CORS so frontend on Vercel can access backend
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Load model once at startup
 detector = pipeline(
     "image-classification",
     model="google/vit-base-patch16-224"
@@ -47,6 +57,7 @@ async def detect_video(file: UploadFile = File(...)):
 
     start = time.time()
 
+    # placeholder video detection
     elapsed = int((time.time() - start) * 1000)
 
     return {