[TASK] change method of guestlogin to 'POST' and fix small bug
[TASK] change method of guestlogin to 'POST' and fix small bug

kyungmi/webida-server,gotchazipc/webida-server,gotchazipc/webida-server,webida/webida-server,gotchazipc/webida-server,webida/webida-server,webida/webida-server,kyungmi/webida-server,kyungmi/webida-server,kyungmi/webida-server,webida/webida-server,gotchazipc/webida-server