From: Albert Schlef <albertschlef@...>
Date: 2009-01-19T18:19:32+09:00
Subject: Re: How to refresh Image through ajax request

Kumar Saurav wrote:
> I am using Ajax Request(Rmagick in controller)
> for changing image on my DIV but the problem is it refresh for first
> time only
[...]
>         render :text => "<img src='/images/xyz.jpg' />"

Perhaps the browser caches this image. The browser isn't aware that it 
has changed. I suggest you add some random string to the image's URL. 
E.g. /image/xyz.jpg?56543653.
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