Rack::Taint is Rack middleware to taint the the query string (and thus GET parameters), input (and thus POST parameters), headers (and thus cookies), and everything else that comes in on a request. Among other use cases, this may prove helpful as a component in a scheme that limits mass assignment in Rails.
Add this line to your application's Gemfile:
On Rails, the Railtie takes care of everything else. On everything
else, you'll need to add the
Rack::Taint middleware to the stack
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