This webpage tries to include Brightspace.ru.nl inside a frame.

Your browser will probably allow this, as Brightspace apparently does not try to prevent this using X-Frame-Options or some CSP policy.

But the login page from surfconext.nl where you enter your login credentials does not allow this: Log out from Brightspace to see this. Once you are logged into Brightspace then the UT redression of Brightspace.ru.nl in this webpage does work.

Visit this link to see that our old Blackboard website. the predecessor of Brightspace, did protect against this.