The Drax Cave/Mobile: what's up with the mysterious "left"?

From Tardis Wiki, the free Doctor Who reference

Mobile users may have noticed for quite some time that a mysterious word "left" appears at the top of a lot of our pages, viz:

LeftIssue.png

A technical way forward has now been found, so this mysterious "left" should soon stop clouding the mobile experience. If this solution ultimately requires editors to do anything, I'll keep you apprised in this thread.