var urlT = url + "/_api/web/lists/getbytitle('Project%20Icon%20Library')/items(1)";

    httpntlm.post({
    url: urlT,
    username: config.sharepoint.username,
    password: config.sharepoint.password,
    headers:
      {
        "accept": "application/json;odata=verbose",
        "content-type":"application/json;odata=verbose",
        "IF-MATCH": "*",
        "X-HTTP-Method": "MERGE",
      },
    requestDigest:XrequestDigest,
    data:data,
  }