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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:

gem 'rack-taint'

On Rails, the Railtie takes care of everything else. On everything else, you'll need to add the Rack::Taint middleware to the stack yourself.


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