I'm building a form on our website using HTML. The form works and is sending leads into our crm. I'm trying to add a checkbox field to the form and pass the data to a field in the lead, but nothing is working. I've tried sending TRUE, True, true, YES, Yes, yes, 1. Any time I try to send anything to the checkbox it causes the lead to not get into Zoho at all. What do I need to pass to check a checkbox?