Hi Ohad,
Sorry I forgot that part. Using the .length > 0 method it sends with the /rFile: feild as “undefined” if there is an attachment and sends through without attachment successfully. Although if !== 0 method is used it sends successfully with the attachment URL if a file is uploaded but it fails with a match error and doesnt send submissions without an attachment.
I hope this clears it up. Thank you for your time!