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Fix same origin policy issue when adding @font-face rules

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If the first stylesheet in the document is located on an external domain, then
trying to access the `cssRules` property of that `CSSStyleSheet` object will
result in a Security error being thrown in Firefox. In Safari, `cssRules` will
be null, which causes a null pointer exception in the `styleSheet.cssRules.length`
expression.
This commit is contained in:
Ionuț G. Stan 2011-11-02 12:47:41 +02:00
parent 112115c013
commit 090b4d6647
1 changed files with 5 additions and 6 deletions
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11
src/fonts.js
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@ -1787,12 +1787,11 @@ var Font = (function Font() {
var url = ('url(data:' + this.mimetype + ';base64,' +
window.btoa(data) + ');');
var rule = "@font-face { font-family:'" + fontName + "';src:" + url + '}';
var styleSheet = document.styleSheets[0];
if (!styleSheet) {
document.documentElement.firstChild.appendChild(
document.createElement('style'));
styleSheet = document.styleSheets[0];
}
document.documentElement.firstChild.appendChild(
document.createElement('style'));
var styleSheet = document.styleSheets[document.styleSheets.length - 1];
styleSheet.insertRule(rule, styleSheet.cssRules.length);
return rule;