Spring Logout

303/302 return

@GetMapping("/login")
public String login2(HttpServletResponse resp) {
	String jwt = "123";
	Cookie cookie = new Cookie("JWT_TOKEN", jwt);
	cookie.setHttpOnly(true);
	cookie.setPath("/");
	resp.addCookie(cookie);

	return "forward:/index.html";
	// or 
	return "index.html";
}

@GetMapping("/login")
public ModelAndView login(HttpServletResponse resp) {
	String jwt = "123";
	Cookie cookie = new Cookie("JWT_TOKEN", jwt);
	cookie.setHttpOnly(true);
	cookie.setPath("/");
	resp.addCookie(cookie);

	return new ModelAndView("redirect:index.html");
}

@GetMapping("/login")
public ResponseEntity<Void> login(HttpServletRequest req, HttpServletResponse resp) {
	String jwt = "123";

	ResponseCookie cookie = ResponseCookie.from("JWT_TOKEN", jwt)
			.httpOnly(true)
			.secure(true)
			.sameSite("Lax")
			.path("/")
			.maxAge(60 * 60)
			.build();
	ResponseEntity<Void> build = ResponseEntity.status(HttpStatus.SEE_OTHER) // 303
			.header(HttpHeaders.SET_COOKIE, cookie.toString())
			.location(URI.create("index.html"))
			.build();
	return build;
}

Inside Server redirect

Note! If the

@GetMapping("/login")
public RedirectView redirectView(HttpServletResponse resp) {
	String jwt = "123";
	Cookie cookie = new Cookie("JWT_TOKEN", jwt);
	cookie.setHttpOnly(true);
	cookie.setPath("/");
	resp.addCookie(cookie);

	return new RedirectView("index.html");
}