Browser Feature Detection

feature-detection.js

function supportsSvg() {
    return document.implementation.hasFeature('http://www.w3.org/TR/SVG11/feature#Image', '1.1');
}

function supportsObjectCreate() {
    // 
    // Desktop 
    // Browser         | Firefox | (Gecko) | Internet Explorer | Opera | Safari
    // Basic support   | 5       | 4.0 (2) | 9                 | 11.60 | 5
    // 
    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create
    //
    return typeof Object.create === 'function';
}

function supportsPushState() {
    //
    // Desktop 
    // Browser         | Internet Explorer
    // Basic support   | 11             
    // 
    // http://caniuse.com/#search=pushstate
    //
    return typeof history.pushState === 'function';
}