explicitly set CORSMiddleware options

server/src/main.py

@@ -12,12 +12,14 @@ app = FastAPI(docs_url=None, redoc_url=None)
 app.add_middleware(
     CORSMiddleware,
     allow_origins=["*"],
-    allow_methods=["GET"]
+    allow_credentials=False,
+    allow_methods=["GET"],
+    allow_headers=["*"]
 )
 
 
 @app.get('/')
-async def shorten_url(url: Optional[str] = None):
+async def unshorten_url(url: Optional[str] = None):
     if url is None:
         return {"error": "no url provided"}