Element Click fails on a <tr> with an even number of <td>'s

[InstyleVII]

I'm not certain whether this is actually a WebDriver bug or a table bug. In any case when you click on the space between two 's in a events bound to the won't fire. This comes up as a regression because in JWP implementation it appears to use a script-based click which will fire the event. I've supplied a simple example which fails in all browsers with an actual mouse click and in Firefox/Edge with WebDriver. I know our version of click does do actual hit testing so we're as close to an actual user click as possible.
https://codepen.io/instylevii/pen/MBypYa