fix try-catch for jwt verification

webapp/views.py

@@ -1,7 +1,7 @@
 """Webapp views."""
 
 from jwt import decode
-from jwt.exceptions import InvalidSignatureError
+from jwt.exceptions import InvalidTokenError
 from django.utils import timezone
 from django.conf import settings
 from django.http import HttpResponse, JsonResponse
@@ -344,7 +344,7 @@ def nginx_jwt_resp(request, *args, **kwargs):
         # This also verifies the signature.
         # See https://pyjwt.readthedocs.io/en/latest/usage.html#reading-the-claimset-without-validation
         token = decode(accessKey, settings.SECRET_KEY, algorithms=["HS256"])
-    except InvalidSignatureError:
+    except InvalidTokenError:
         return HttpResponse("", status=403)
     user = "admin" if token.get("username", "") == "admin" else "moderator"
     resp = HttpResponse("", status=200)