SVG src fallback by Jobs UI

svg-src-fallback.js

/*
 * Replaces SVG images in img elements with PNG alternative
 *
 * The PNG file must have the same URL as the SVG file, up to the extension.
 */

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

    if (!supportsSvg()) {
        $('img[src$=".svg"], img[src*=".svg?"]').attr('src', function (i, src) {
            return src.replace(/\.svg(\?|$)/, '.png$1');
        });
    }
});