Yes, I agree - DEBUG - but I think as well as the important note, we should change the reference manual examples to use the "proper" syntax for the headers `headers['delay']` instead of `headers.delay`. Because, as we discussed before, this shorthand form will fail if the header is not present. While it will work functionally, now that you catch the `EvaluationException`, it will be more expensive at runtime than `headers['delay']` which will return null.