[FIX] web_editor: correct check of 'rules' property

see issue #22517
2018-02-05 20:24:23 +01:00
parent b08185fc66
commit a98beb13db
1 changed files with 1 additions and 1 deletions
@@ -13,7 +13,7 @@ var getMatchedCSSRules = function (a) {
        var sheets = document.styleSheets;
        for(var i = sheets.length-1; i >= 0 ; i--) {
            var rules;
-            if (sheets[i].rules) {
+            if (sheets[i].hasOwnProperty('rules')) {
                rules = sheets[i].rules;
            } else {
                //try...catch because Firefox not able to enumerate document.styleSheets[].cssRules[] for cross-domain stylesheets.