> So you are saying that if you enter the url directly in the browser > you get one result, but if you use rails to redirect to exactly the > same url then you get a different effect? yes,that is right. > What happens if you just put a link to that url on your web page and > click it? i appreciate this debug way.i have made a link and click it on my page,the result is right,a popup window appears. i think i don't need to attach an image to show it.Colin,it seems redirect_to method doesn't work well with facebook url.
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