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Fix duplicate Date headers in Flask WSGI responses #64726

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Merged
vincbeck merged 4 commits into from
Apr 13, 2026
+8 −0
Merged

Fix duplicate Date headers in Flask WSGI responses #64726

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3a99f13
Fix duplicate Date headers in Flask response middleware
Apr 4, 2026
8969ebc
fix: keep last Date header when deduplicating
Apr 8, 2026
02c14dc
Apply ruff formatting
Apr 9, 2026
ffb9240
Update providers/fab/src/airflow/providers/fab/www/app.py
abhijeets25012-tech Apr 11, 2026
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8 changes: 8 additions & 0 deletions providers/fab/src/airflow/providers/fab/www/app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,14 @@ def create_app(enable_plugins: bool):
from airflow.providers.fab.auth_manager.fab_auth_manager import FabAuthManager

flask_app = Flask(__name__)

@flask_app.after_request
def remove_duplicate_date_header(response):
# Remove the application-level Date header so the ASGI/WSGI server
# can emit a single Date header for the final response.
response.headers.pop("Date", None)
return response

flask_app.secret_key = conf.get("api", "SECRET_KEY")
flask_app.config["SQLALCHEMY_DATABASE_URI"] = conf.get("database", "SQL_ALCHEMY_CONN")
flask_app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
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