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rvspMeetingService.getValidMeetingInvitation(vm.invitation_hash)
        .then(function(response){

            //if success/good response from server
            //angular current version dont have status in sucessCallback while errorCallback have status code

            if (!('status' in response)) {
                console.log('first rvsp service', response);
            }
            else {
                console.log('not valid meeting invitation, stop here');
                return false;
            }

});