Added Cors Policy

Author: SplinterSword

backend/main.py

@@ -1,10 +1,20 @@
 from utils.get_contradictory_news import get_contradiction_news
+from fastapi.middleware.cors import CORSMiddleware
 from fastapi import FastAPI
 from pydantic import BaseModel
 import os
 
 app = FastAPI()
 
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["http://localhost:3000","https://pol-con.vercel.app/"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
 class Politician(BaseModel):
     name: str