"Your connection is not secure" messages when accessing library resources

We are having some issues using the library system to connect to resources which use https, resulting in messages like this:

or this:

Rest assured that if you've come through the library catalogue or DISCOVER, and the link you're trying to access has brum.beds.ac.uk in the URL, then it's just a technical hitch not a real security risk. You can safely click Add Exception and then Confirm Security Exception.