Question Post parameter is blank!

Hi there!

I wondering why my Post parameter in some URL are always blank?
I just test by simple WWWForm tutorial from Unity
But some URL is blank But some URL was ok
my Unity version is 2021.3.16f1

there need to have a custom settings in some where?

I was tested in https://httpbin.org/post to see my Post parameters
and they are exist there, Why in my URL is still blank?

my URL here https://www.hardworkerstudio.com/Santhai/PostComment.php "
and Post parameter is "myComment"

and https://www.hardworkerstudio.com/Santhai/AddItem/Add.php
and Post parameter is "puid"

But this URL is ok even the same site
https://hardworkerstudio.com/monk/test.php
and Post parameter is "data" this site will return a post parameter also.

I don't know why Same C# code But just difference URL with same website are so difference?


anyone has suggestion?

Thanks!