access cfc component

If you are using a form to submit via AJaX to a CFC:

$('#submitBtn').on('click', function(e){
    e.preventDefault(); // prevents form from standard submit
    var $formData = $('#formName').serializeArray(); // Since this is submitting via AJaX, the submit button will not be included in the form scope
    var $urlData = "//www.domain.com/components/myCFC.cfc?method=myFunction"; //As nic pointed out, change this to fit your environment
    $.ajax(
        url: $urlData,
        data: $formData
        )
        .done(
           // Process code for successful action
                );
    });

This is what I typically use.  Different scenarios have different settings.

HTH,

^_^