Avoid exception when selectorText not defined

haraldrudell · Dec 26, 2012 · 21859d5 · 21859d5
1 parent c5ee555
commit 21859d5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/jsdom/browser/index.js b/lib/jsdom/browser/index.js
@@ -249,7 +249,7 @@ exports.createWindow = function(dom, options) {
 
       forEach.call(node.ownerDocument.styleSheets, function (sheet) {
         forEach.call(sheet.cssRules, function (ruleSet) {
-          selectors = ruleSet.selectorText.split(/\s*,\s*/);
+          selectors = typeof ruleSet.selectorText == 'string' ? ruleSet.selectorText.split(/\s*,\s*/) : [];
           matched = false;
           selectors.forEach(function (selectorText) {
             if (!matched && matchesDontThrow(node, selectorText)) {