diff --git a/airflow/www/decorators.py b/airflow/www/decorators.py
index f373990a4c919..9a916da184c13 100644
--- a/airflow/www/decorators.py
+++ b/airflow/www/decorators.py
@@ -95,7 +95,7 @@ def wrapper(*args, **kwargs):
                     user_display = get_auth_manager().get_user_display_name()
 
                 isAPIRequest = request.blueprint == "/api/v1"
-                hasJsonBody = "application/json" in request.headers.get("content-type") and request.json
+                hasJsonBody = "application/json" in request.headers.get("content-type", "") and request.json
 
                 fields_skip_logging = {
                     "csrf_token",