I'm sorry but I didn't follow you. Do you use wpForo User Custom Fields addon? If so why you're writing custom code on registration form? This addon allows to do that in Dashboard > Forums > User Fields admin page, just navigate to Registration Form tab and customize the form.

For farther support please open a support topic in gVectors Store support forum. This is the free core support community, we don't support addons here.

Can you help me figure out why my additional fields are not being POSTed on registration submit?

I have a custom implementation of WPForo that accepts an input from jQuery, but everything is working with the exception of the data being  sent. 

I am using the setup that allows the user to set their own password. Below is the Header payload. Fields not present here are: display_name (wpfreg_display_name), and a custom field (data_field_1f5e0aa).

I am dynamically adding data to both fields via their ID (#wpfreg_display_name). Is there something I'm missing where the actual field name isn't receiving my data? I should also mention both fields are locked before the send is initiated. 

I went through the php files for both wpforo and the plugin and I have a couple of ideas, but if you could help me figure out what I'm doing wrong I'd appreciate it!

------   HEADER RESPONSE  BELOW   ------

wpforo:signup

------WebKitFormBoundaryNaDngKSDDzaDQkTq
Content-Disposition: form-data; name="wpfreg"

testusername
------WebKitFormBoundaryNaDngKSDDzaDQkTq
Content-Disposition: form-data; name="wpfreg"

test@test.com
------WebKitFormBoundaryNaDngKSDDzaDQkTq
Content-Disposition: form-data; name="wpfreg"

password
------WebKitFormBoundaryNaDngKSDDzaDQkTq
Content-Disposition: form-data; name="wpfreg"

password
------WebKitFormBoundaryNaDngKSDDzaDQkTq
Content-Disposition: form-data; name="security"

l7gso92hp4
------WebKitFormBoundaryNaDngKSDDzaDQkTq
Content-Disposition: form-data; name="_wp_http_referer"

/community/?wpforo=signup
------WebKitFormBoundaryNaDngKSDDzaDQkTq--