Jun 22, 2018 11:39 AM|proskilly|LINK
Within your function PostFormAjax you are doing something with formData, but then in the actual AJAX call to the server you aren't using formData anywhere so when you tried :
formData.append (k, v.replace(',', '.'));
It was having no effect on what is been sent to the server.
You can check in Chrome developer tools or similar to see exactly what is been posted to the server.