title: POST REST call on sharepoint 2013 send a 403 forbidden
body: <p>I have one problem.</p>
  
  <p>On a sharepoint 2013 there is one way to modify list for example with REST call.</p>
  
  <p>So the get call are OK (read-only)
  the post call to site/_api/contextinfo is ok i retrieve the token</p>
  
  <p>but when i call another post (PUT) for example with X-RequestDigest and NTLM authentication i have this error :</p>
  
  <p>{"error":{"code":"-2130575251, System.Runtime.InteropServices.COMException","message":{"lang":"en-US","value":"The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again."}}}</p>
  
  <p>an Idea ?</p>