[ insertRecords ] Getting EOF error when uri exceeds 1000 char

[ insertRecords ] Getting EOF error when uri exceeds 1000 char

Hello,

I'm trying to insert a new account, using insertRecords method, with HTTP POST.
If the url length doesn't exceed 1010 characters, no problems, the POST is fired, and i get the records in Zoho CRM:



But as soon as i add just on character, and the url length exceeds 1010 char, the "eof" (end of file ?) header field turn to TRUE, and the POST is not fired anymore, and i get nothing in Zoho CRM:




I spent hours on this problem before notifying this, and i made somes tests to find the limit.
I tried to update the php.ini files (post_size_limit) but no success.

Here is the HTTP POST REQUEST :
I tried to change the content type, using just form url encoded, just xml, both...



Thanks for the help, i'm here if you have any question :)