当我尝试访问外部域上托管的一些CSS文件时，我在Firebug中收到此错误：
Security error" code: "1000 rules = styleSheets[i].cssRules;
我使用的代码是：
$(document).ready(function () {
$("p").live('mousedown',function getCSSRules(element) {
element = $(this);
var styleSheets = document.styleSheets;
var matchedRules = [],rules,rule;
for (var i = 0; i < styleSheets.length; i++) {
rules = styleSheets[i].cssRules;
for (var j = 0; j < rules.length; j++) {
rule = rules[j];
if (element.is(rule.selectorText)) {
matchedRules.push(rule.selectorText);
}
}
}
alert(matchedRules);
});
});
解决方法
@H_404_13@ 这个问题的唯一真正解决方案是CORS首先加载你的CSS。通过使用CORS xmlHTTPRequest从外部域加载CSS，然后将responseText(在这种情况下实际为responseCSS)注入页面，方法如下：function loadCSSCors(stylesheet_uri) {
var _xhr = global.XMLHttpRequest;
var has_cred = false;
try {has_cred = _xhr && ('withCredentials' in (new _xhr()));} catch(e) {}
if (!has_cred) {
console.error('CORS not supported');
return;
}
var xhr = new _xhr();
xhr.open('GET',stylesheet_uri);
xhr.onload = function() {
xhr.onload = xhr.onerror = null;
if (xhr.status < 200 || xhr.status >=300) {
console.error('style Failed to load: ' + stylesheet_uri)
} else {
var style_tag = document.createElement('style');
style_tag.appendChild(document.createTextNode(xhr.responseText));
document.head.appendChild(style_tag);
};
xhr.onerror = function() {
xhr.onload = xhr.onerror = null;
console.error('XHR CORS CSS fail:' + styleURI);
};
xhr.send();
}
