Salesforce : violates RFC 2109: host minus domain may not contain any dots If you’re having this error : WARN  [HttpMethodBase] Cookie rejected: “$Version=0; BrowserId=r6xh5l3CSZKIc2QhNu1B3A; $Path=/; $Domain=.salesforce.com”. Domain attribute “.salesforce.com” violates RFC 2109: host minus domain may not contain any dots This is because Salesforce try to create a cookie for each new connection, but