security-and-privacy/CanvasBlocker
security-and-privacy/CanvasBlocker
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Prevented bypass with empty <iframe>.

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Fixes #58
This commit is contained in:
kkapsner 2016-01-28 23:46:39 +01:00
parent 39ffe4d3b2
commit 424b88f04f
2 changed files with 7 additions and 2 deletions
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canvasblocker.xpi
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9
lib/sharedFunctions.js
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@ -35,8 +35,13 @@ function check(stack, url, blockMode){
function checkURL(url, blockMode){
"use strict";
if (url.protocol === "about:" || url.protocol === "chrome:") {
return "allow";
switch (url.protocol){
case "about:":
if (url.href === "about:blank"){
break;
}
case "chrome:":
return "allow";
}
var mode = "block";