It is used to specify the url from which the form definition is retrieved. Only required if data-id is not used, or if presenting an advocacy related form, which requires getting the form definition from a different endpoint. Example, to load a form from a url:

<div class="ngp-form" data-form-url="https://actions.everyaction.com/v1/Forms/5r7I2eqN-kyshSYk6ZS6Rg2"></div>

For advocacy related forms, you have to request the form definition through our advocacy service, which we creatively call advocator. This URL is constructed using the following pattern: