Fixing server error

app.py

@@ -25,10 +25,11 @@ def get_token() -> str:
     )
 
 
-def get_headers() -> dict:
+def get_headers(host: str) -> dict:
     creds = load_default_credentials()
     return {
         "Authorization": f"Bearer {creds.access_token}",
+        "Host": host,
         "Accept": "application/json",
         "Content-Type": "application/json",
     }
@@ -36,7 +37,7 @@ def get_headers() -> dict:
 
 def proxy(request: httpx.Request, model_info: dict) -> httpx.Request:
     request.url = request.url.copy_with(path=model_info["endpoint"])
-    request.headers.update(get_headers())
+    request.headers.update(get_headers(host=model_info["host"].replace("https://", "")))
     return request