HX-Source
Identifies element that triggered the request
The HX-Source request header contains the element that triggered the request. Format is tag#id like button#submit.
Elements without an ID use only the tag name like div or form.
Example
Check which element triggered the request.
source = request.headers.get('HX-Source')
if source == 'button#submit-btn':
# Handle button submission
return handle_button_submit()
Licensed under the Zero-Clause BSD License.
https://four.htmx.org/reference/headers/HX-Source/
