Getting lots of strange errors about weird http verbs being used, this rack middleware will help 🙂

Setup

config.middleware.use 'HttpVerbResponder',
  'PROPFIND' => [404, {}, 'Not supported'],
  'PURGE' => [404, {}, 'Not supported'], # e.g. varnish
  'OPTIONS' => [200, {"Access-Control-Allow-Origin" => "*", "Access-Control-Max-Age" => '1000'},'OK"] # CORS

Code

class HttpVerbResponder
  def initialize(app, options={})
    @app = app
    @options = options
  end

  def call(env, options={})
    if response = @options[env['REQUEST_METHOD']]
      response
    else
      @app.call(env)
    end
  end
end

Test

curl -X PURGE your-url.com