eligrey/FileSaver.js — pull request #96 by eugene-ku (2014-07-15 13:43:37+00:00)
Title: redirect for safari if it don't open new tab

As mentioned here https://developer.apple.com/library/safari/documentation/tools/conceptual/safariextensionguide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.html
safari do not leverage window.open and therefore other solution must be applied.