<script>
var descr_list_url = '{% url "projects:list_descriptors" project_id=project_id descriptor_type=descriptor_type%}';
var csrf_token = '{{csrf_token}}';
+ var new_desc_url ="{% url 'projects:new_descriptor' project_id=project_id descriptor_type=descriptor_type %}"
function cancel(id) {
window.location.href = descr_list_url