Ember.isArray return true for FileList object #12688
Description
Passing a FileList object to Ember.isArray returns true, even though it does not behave like an Ember Array/Enumerable. I'm not sure if this is within the scope of Ember.
JSBin: http://emberjs.jsbin.com/ricokobotu/8/edit?js,console,output
Interesting bit from the File spec:
The FileList interface should be considered "at risk" since the general trend on the Web Platform is to replace such interfaces with the Array platform object in ECMAScript [ECMA-262]. In particular, this means syntax of the sort filelist.item(0) is at risk; most other programmatic use of FileList is unlikely to be affected by the eventual migration to an Array type.