my login code does not work

[akhsa234]

Unchecked runtime.lastError: The message port closed before a response was received.

.formLogin()
.loginPage("/login")
.permitAll()
.defaultSuccessUrl("/courses", true)
//TODO Unchecked runtime.lastError: The message port closed before a response was received.
.and()
.rememberMe() //version -1 --default for 2 weeks--
.tokenValiditySeconds((int) TimeUnit.DAYS.toSeconds(21))
.key("securedvalue");