Open
Description
Safari returns a wrong window height. While the viewport starts at the very top of the screen, the returned height only corresponds to the part of the screen that starts at the end of the top menu. As a consequence, Tooltipster thinks there is less space available than there really is, and does not use the space at the bottom of the screen. Still happens in iOS9 according to results found in #580. Haven't checked yet if this issue was reported to Apple (couldn't access their bug tracker).
