/* MIT License http://www.opensource.org/licenses/mit-license.php Author Tobias Koppers @sokra */ var stylesInDom = {}; var memoize = function (fn) { var memo; return function () { if (typeof memo === "undefined") memo = fn.apply(this, arguments); return memo; }; }; var isOldIE = memoize(function () { // Test for IE <= 9 as proposed by Browserhacks // @see http://browserhacks.com/#hack-e71d8692f65334173fee715c222cb805 // Tests for existence of standard globals is to allow style-loader // to operate correctly into non-standard environments // @see https://github.com/webpack-contrib/style-loader/issues/177 return window && document && document.all && !window.atob; }); var getTarget = function (target, parent) { if (parent){ return parent.querySelector(target); } return document.querySelector(target); }; var getElement = (function (fn) { var memo = {}; return function(target, parent) { // If passing function in options, then use it for resolve "head" element. // Useful for Shadow Root style i.e // { // insertInto: function () { return document.querySelector("#foo").shadowRoot } // } if (typeof target === 'function') { return target(); } if (typeof memo[target] === "undefined") { var styleTarget = getTarget.call(this, target, parent); // Special case to return head of iframe instead of iframe itself if (window.HTMLIFrameElement && styleTarget instanceof window.HTMLIFrameElement) { try { // This will throw an exception if access to iframe is blocked // due to cross-origin restrictions styleTarget = styleTarget.contentDocument.head; } catch(e) { styleTarget = null; } } memo[target] = styleTarget; } return memo[target] }; })(); var singleton = null; var singletonCounter = 0; var stylesInsertedAtTop = []; var fixUrls = require("./urls"); module.exports = function(list, options) { if (typeof DEBUG !== "undefined" && DEBUG) { if (typeof document !== "object") throw new Error("The style-loader cannot be used in a non-browser environment"); } options = options || {}; options.attrs = typeof options.attrs === "object" ? options.attrs : {}; // Force single-tag solution on IE6-9, which has a hard limit on the # of