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MDL-30876 filter_mediaplugin Wrapping the style sheets access with try & catch

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Conflicts:

	lib/javascript-static.js
This commit is contained in:
David Monllaó
2012-07-17 12:21:07 +12:00
committed by Sam Hemelryk
parent 00714e72ea
commit e52f82253e
1 changed files with 19 additions and 7 deletions
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lib/javascript-static.js
+19 -7
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@@ -1771,15 +1771,27 @@ M.util.load_flowplayer = function() {
var rule;
for (var j=0; j < document.styleSheets.length; j++) {
if (typeof (document.styleSheets[j].rules) != 'undefined') {
var allrules = document.styleSheets[j].rules;
} else if (typeof (document.styleSheets[j].cssRules) != 'undefined') {
var allrules = document.styleSheets[j].cssRules;
} else {
// why??
// To avoid javascript security violation accessing cross domain stylesheets
var allrules = false;
try {
if (typeof (document.styleSheets[j].rules) != 'undefined') {
allrules = document.styleSheets[j].rules;
} else if (typeof (document.styleSheets[j].cssRules) != 'undefined') {
allrules = document.styleSheets[j].cssRules;
} else {
// why??
continue;
}
} catch (e) {
continue;
}
if (!allrules) continue;
// On cross domain style sheets Chrome V8 allows access to rules but returns null
if (!allrules) {
continue;
}
for(var i=0; i<allrules.length; i++) {
rule = '';
if (/^\.mp3flowplayer_.*Color$/.test(allrules[i].selectorText)) {