**Description**
In the trigger page, there is a text area to enter (optional) conf json. It would be great if a sample JSON can be provided programatically while defining DAG

**Use case / motivation**

This will improve usability of the UI that triggers a DAG

tests/www/test_views.py
"""
    Test Airflow DAG acl
    """
    next_year = dt.now().year + 1
    default_date = timezone.datetime(next_year, 6, 1)
    @classmethod
    def setUpClass(cls):