added middelware

app.py

@@ -9,6 +9,7 @@ from starlette.middleware.httpsredirect import HTTPSRedirectMiddleware
 from fastapi import FastAPI
 from starlette.middleware.base import BaseHTTPMiddleware
 from starlette.requests import Request
+from fastapi.middleware.trustedhost import TrustedHostMiddleware
 
 class ProxyHeadersMiddleware(BaseHTTPMiddleware):
     async def dispatch(self, request: Request, call_next):
@@ -28,7 +29,7 @@ app = FastAPI()
 # Mount static files
 app.mount("/static", StaticFiles(directory="static"), name="static")
 app.add_middleware(ProxyHeadersMiddleware)
-
+app.add_middleware(TrustedHostMiddleware, allowed_hosts=["lifefaq.nomad.i80.dk", "localhost"])
 
 # Templates directory
 templates = Jinja2Templates(directory="templates")