/*! * Skip function for es5-shim module. * * Test for strict mode as a proxy for full ES5 function support (but not syntax) * Per http://kangax.github.io/compat-table/es5/ this is a reasonable shortcut * that still allows this to be as short as possible (there are no browsers we * support that have strict mode, but lack other features). * * Do explicitly test for Function#bind because of PhantomJS (which implements * strict mode, but lacks Function#bind). * * IE9 supports all features except strict mode, so loading es5-shim should be close to * a no-op but does increase page payload). */ return ( function () { 'use strict'; return !this && !!Function.prototype.bind; }() );