Basic Authentication during send( ) action

In integrating Orbeon in my system, I'm quite done this last step.

My service uses basic authentication to authenticate the calls to rest service. While loading the published Orbeon form, I've used an HTTP service call that uses basic authentication. This call is successful. After filling the form data, I'm using send( ) action with the call to one of my rest service. But the send service does not succeed. While calling the same rest service with POSTMAN software is successful, of course using basic authentication in the header. 

Thus the problem is narrowed to 'Putting basic authentication in send( ) action'. Is there a way to do so? If not, any other detours? I've gone through the cookie page <a href="https://doc.orbeon.com/configuration/properties/general.html#cookies-forwarding" target="_blank" rel="nofollow" onmousedown="this.href=&#39;https://www.google.com/url?q\x3dhttps%3A%2F%2Fdoc.orbeon.com%2Fconfiguration%2Fproperties%2Fgeneral.html%23cookies-forwarding\x26sa\x3dD\x26sntz\x3d1\x26usg\x3dAFQjCNEwro2r4FYVxzXJxfVtsSvxPyFwXA&#39;;return true;" onclick="this.href=&#39;https://www.google.com/url?q\x3dhttps%3A%2F%2Fdoc.orbeon.com%2Fconfiguration%2Fproperties%2Fgeneral.html%23cookies-forwarding\x26sa\x3dD\x26sntz\x3d1\x26usg\x3dAFQjCNEwro2r4FYVxzXJxfVtsSvxPyFwXA&#39;;return true;">https://doc.orbeon.com/configuration/properties/general.html#cookies-forwarding. But it says 'When a username for HTTP Basic authentication is specified, cookies are not forwarded.'. I guess putting authentication headers in the send header is the only way.