CORS

type int is not present

로그인 세션 쿠키 JWT

https://velog.io/@leehyunho2001/로그인

oauth

https://datamoney.tistory.com/333

https://velog.io/@swchoi0329/스프링-시큐리티와-OAuth-2.0으로-로그인-기능-구현

dd