Link to previous page if internal request
Sometimes you would like to let the user navigate to a previous page in history.
However, you don’t want to let the user navigate to a previous url that is from another website.
Here’s how I prevent
Determine if the URL is from the current website:
def internal_request? previous_url = request.referrer return false if previous_url.blank? referrer = URI.parse(previous_url) return true if referrer.host == request.host false end
Hide link “Back” if the request is not from current website: