I want to write a program which will log in to squareup.com. So for this I need to know where the form is located and to where is it submitted.
So the form is located at https://squareup.com/login, and the source code contains the following:
<form accept-charset="UTF-8" action="/mp/login" class="signin-page-form " method="post" novalidate="novalidate">
As much as I understand this means the submition URL is located at squareup.com/mp/login. Yet when I try this URL in a browser I get the 404 error. What am I not doing right?