uranusjr opened a new pull request #15980: URL: https://github.com/apache/airflow/pull/15980
A flask view should always return a response object, not None. This makes `TaskInstanceModelView.action_view` works like all other action views in the same class, redirecting to the previous page even after an exception (and show the exception as a flash). This does *not* resolve #15775, but should make the error more obvious to the user, instead of masking it with another error. --- **^ Add meaningful description above** Read the **[Pull Request Guidelines](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#pull-request-guidelines)** for more information. In case of fundamental code change, Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals)) is needed. In case of a new dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). In case of backwards incompatible changes please leave a note in [UPDATING.md](https://github.com/apache/airflow/blob/master/UPDATING.md). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
