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I am using Ruby on Rails (3.2.2) and I would like to retrieve the value of the URL from where a request is performed. That is, given I am on the http://stackoverflow.com/questions/10147789 Web page and in that page content there is an link having a URL to my application at http://my_application.com, when I access that URL I would like to retrieve the http://stackoverflow.com/questions/10147789 string.
Is it possible? If so, how?
Yes, it is. You can use HTTP_REFERER