Spring Security get CSRF token
问题 I am using Spring Security 4. Everything works fine until I decided to turn on CSRF to keep website security. But I am getting confused after reading lots of relevant documents. Here is the question: I have back-end services with Spring MVC and Spring Security running on Computer A , on Computer B I have all the front-end HTML. New I want to login in from webpages in Computer B , it always says Invalid CSRF Token 'null' was found on the request parameter '_csrf' or header 'X-CSRF-TOKEN'. I