if cancan access is denied it displays an error page or movie to another page, how to stay on same page?



I have used cancan and i have used


rescue_from CanCan::AccessDenied do |exception|
flash[:error] = "Access denied!"
redirect_to root_url
end

in my application controller but i want to stay on the same page where i perform that action and if possible a pop up window just showing


you are not authorised to perform this action


How to customize so as to stay in the same page wherever the unauthorized action is performed? please help me doing this.


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I have used cancan and i have used


rescue_from CanCan::AccessDenied do |exception|
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end

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