Stop Google Web Accelerator in your Rails apps

Use the following code to stop Google Web Accelerator in your Rails apps

class ApplicationController < ActionController::Base
before_filter :disable_link_prefetching

private
  def disable_link_prefetching
    if request.env["HTTP_X_MOZ"] == "prefetch"
      logger.debug "prefetch detected: sending 403 Forbidden"
      render_nothing "403 Forbidden"
      return false
    end
  end
end