在 Firefox 3.5 上遇到的 reload 問題

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you might call the same page but let it look like it is an other page by changing the querystring:

window.location.href = "index.html" + "?" + Date.parse(new Date());

This works for every browser. You could improve it by extracting the current page out of location.href.
Edit:
If you already have an existing querystring you have to use & insead of ?:

window.location.href = "product.aspx?id=prod" + "&" + Date.parse(new Date());

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Reference:
http://stackoverflow.com/questions/1536900/force-a-page-refresh-using-javascript-in-firefox