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Rails Cors
1. install rack-cors gem (https://github.com/cyu/rack-cors)
gem 'rack-cors', :require => 'rack/cors'
2. add to application.rb
config.middleware.insert_before "Rack::Lock", "Rack::Cors", :debug => true, :logger => Rails.logger do
allow do
origins '*'
resource '/cors',
:headers => :any,
:methods => [:post],
:credentials => true,
:max_age => 0
resource '*',
:headers => :any,
:methods => [:get, :post, :delete, :put, :options],
:max_age => 0
end
end
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