[Rich Content Editor] Adding tabindex to Canvas HTML Editor Allowlist

[cmidyett15]

Problem statement:

I'm currently building a course in Canvas that contains HTML/CSS Flip Cards. The Flip Cards look great, but I can't make them fully accessible because the Canvas HTML Editor Allowlist doesn't currently support the tabindex tag. I've also posted this problem in the Canvas community and received a reply from @DrNufer who is a Community Coach who would also like to see a solution for this issue. Re: tabindex="0" for HTML/CSS Flip Cards in Canvas 

Proposed solution:

I propose that the developers update the Canvas HTML Editor Allowlist to support the tabindex tag. The allowlist was last updated some 3 years ago and users should be able to create key board accessible objects for things outside of the traditional elements. The Flip Card is a great interactive tool for users to engage with, but without tabindex you are not making the feature accessible for all users, which is wrong. If the tabindex tag were allowed in Canvas, then this would open a lot of opportunities for different designs with the flip cards.

User role(s):

admin,instructor,designer