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Detect window safely

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This commit is contained in:
Piro / YUKI Hiroshi 2014-10-01 00:27:30 +09:00
parent 20e58a5b0b
commit fc7f336c69
1 changed files with 4 additions and 1 deletions
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5
modules/lib/animationManager.js
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@ -67,7 +67,10 @@ if (typeof window == 'undefined' ||
addTask : function(aTask, aBeginningValue, aTotalChange, aDuration, aRelatedWindow)
{
if (!aRelatedWindow && window && window instanceof window.Window)
if (!aRelatedWindow &&
window &&
typeof window.Window == 'function' &&
window instanceof window.Window)
aRelatedWindow = window;
if (!aTask || !aRelatedWindow) return;