Powertip offset when Chrome zoomed

[jasco]

There is a issue with Chrome due to https://bugs.chromium.org/p/chromium/issues/detail?id=489206 whereby zooming the page can cause the popup to be offset from its intended position. Is there interest in a pull request for this issue?

[stevenbenner]

What a frustrating bug. Basing the browser scroll properties on the raw, scaled viewport seems like pretty silly decision.

Sure if you have a good solution to the problem I would welcome a pull request.