CODE EXAMPLE FOR JAVASCRIPT

angularjs trying to fix a rack lint error and 500 on GET /cable

class ::Rack::Lint
  alias check_status_orig check_status
  alias check_headers_orig check_headers
  alias check_content_type_orig check_content_type
  alias check_content_length_orig check_content_length
  alias check_hijack_orig check_hijack
  alias _call_orig _call

  def _call(env)
    @web_socket = env['REQUEST_PATH'] == '/cable'
    _call_orig(env)
  end

  def check_status(status)
    return if @web_socket
    check_status_orig(status)
  end

  def check_headers(headers)
    return if @web_socket
    check_headers_orig(headers)
  end

  def check_content_type(status, headers)
    return if @web_socket
    check_content_type_orig(status, headers)
  end

  def check_content_length(status, headers)
    return if @web_socket
    check_content_type_orig(status, headers)
  end

  def check_hijack(env)