angular/angular.js — pull request #5603 by tbosch (2014-01-02 22:38:20+00:00)
Title: fix($httpBackend): Ignore multiple calls to onreadystatechange with read...

...yState=4

On mobile webkit `onreadystatechange` might by called multiple times
with `readyState===4` caused by xhrs that are resolved while the app is
in the background.

Fixes #5426.