Ie8 response.js 'undefined' is null or not an object

Question

I use reply.js (+1 for this library), and I get and am mistaken in the following function of the object:

translate = function (styles, href, media) { // here I got 'undefined' error in IE 8 var qs = styles.match(/@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi), ql = qs && qs.length || 0; //try to get CSS path href = href.substring(0, href.lastIndexOf("/")); var repUrls = function (css) { return css.replace(/(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g, "$1" + href + "$2$3"); }, useMedia = !ql && media; //if path exists, tack on trailing slash if (href.length) { href += "/"; } //if no internal queries exist, but media attr does, use that //note: this currently lacks support for situations where a media attr is specified on a link AND //its associated stylesheet has internal CSS media queries. //In those cases, the media attribute will currently be ignored. if (useMedia) { ql = 1; } for (var i = 0; i < ql; i++) { var fullq, thisq, eachq, eql; //media attr if (useMedia) { fullq = media; rules.push(repUrls(styles)); } //parse for styles else { fullq = qs[i].match(/@media *([^\{]+)\{([\S\s]+?)$/) && RegExp.$1; rules.push(RegExp.$2 && repUrls(RegExp.$2)); } eachq = fullq.split(","); eql = eachq.length; for (var j = 0; j < eql; j++) { thisq = eachq[j]; mediastyles.push({ media: thisq.split("(")[0].match(/(only\s+)?([a-zA-Z]+)\s?/) && RegExp.$2 || "all", rules: rules.length - 1, hasquery: thisq.indexOf("(") > -1, minw: thisq.match(/\(\s*min\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/) && parseFloat(RegExp.$1) + (RegExp.$2 || ""), maxw: thisq.match(/\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/) && parseFloat(RegExp.$1) + (RegExp.$2 || "") }); } } applyMedia(); }, 

Are there any other workarounds? I tried different ...

Answer 1

I had a similar problem on line 121 (Respond.js 1.3.0). An empty stylesheet caused the problem, and fixing it resolved the problem.

There is not enough information to find out if your case is exactly the same, but you can try and see if it helps.