We have received an update from Talis, the readinglist providers that they have resolved issues affecting safari or chrome users:
"I am pleased to let you know that our team have been able to complete the work on Safari. All users can now log in to access Talis Aspire regardless of the browser they are using while in the Virtual Learning Environment/Learning Management System."
By VLE or LMS they mean, in our case, Moodle. :)