Airflow 3: use clear 404 when something is not found at a given URL

[brki]

Apache Airflow version

3.1.3

If "Other Airflow 2/3 version" selected, which one?

No response

What happened?

https://BASE_URL/dags/misspelled_dag
=> shows an empty, but otherwise normal dag overview page. A little red box with an X in it , if clicked on, provides the information that the dag is not found.

https://BASE_URL/dags//some_dag (with a double slash in the URL)
=> Shows an empty (except for the Airflow sidebar) page

What you think should happen instead?

When a URL leads to something non-existant, it would be nice to see a clear 404 not found error.

How to reproduce

• https://BASE_URL/dags/misspelled_dag
• https://BASE_URL/dags//some_dag (doubled slash)

Operating System

linux (Airflow docker image)

Versions of Apache Airflow Providers

Those in the Airflow 3.1.3 docker image.

Deployment

Official Apache Airflow Helm Chart

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[choo121600]

I want to try this ;)

[choo121600]

I’ve looked into it, and it seems we should split this issue into two parts:

• Incorrect URL
• Non-existent dag_id

I’ll address these two cases separately.

[bbovenzi]

Thanks @choo121600 Do you still plan to add a PR to handle an incorrect dag_id?

[choo121600]

Oops — I totally forgot about this 😅
I’ll be tied up with work for the rest of this week, so I’ll follow up with a PR sometime next week.