Does not validate with W3C html validator

Hi, there is a small problem with the plugin, I’m creating an accessible website and need to validate HTML with W3C tools like https://validator.w3.org, and also using you plugin for CAS login.

The question is you use the vendor/jquery.multi-select script, and it is called with the attribute type=”text/javascript” in the <script> tag. This is obsolete for w3c, and marked as an error by the validator.

Could you change it? I would greatly appreciate as I spend a lot of hours with this and is the last warning I need to solve to get a perfect website 😉

Thank you very much