Footnote Pane is Off-Screen

So, I've noticed this ever since updating to the Logos 9 shell (currently on 9.1). When I hover over a footnote indicator, I get the usual popup (which has a character limit—no problem). The whole popup is visible and readable. Great!

However, when the content of the footnote is longer than the character limit allows and I click on the footnote indicator to reveal the whole text, the small window sometimes extends outside of the viewport. I've noticed this particularly with footnote indicators in the third column in a three-column layout. I can't read the right 10% of the text, which makes it difficult, obviously.

Could we get some kind of placement algorithm in the code to make sure that footnote panes are always completely within the viewport?

I've included two screenshots to illustrate 1) what the full content of the footnote should be and 2) what it looks like when it's cut off.