Blot Out the Sun is a javascript game, playable at http://mattbatman.github.io/blot-out-the-sun.
There's a current bug for iOS 9 Safari that affects the path and placement of the sun on screen when the browser is refreshed. Specifically, window.innerHeight and window.innerWidth are (incorrectly) returning high of values when the browser is refreshed, though they're correct when the page is first loaded. It seems to be discussed in these forums:
to: seems to solve the problem on iOS. However, this creates seemingly several bugs in Chrome for iOS.