```ruby
require 'haml/template/options'
require 'haml/engine'
if defined?(ActiveSupport)
  ActiveSupport.on_load(:action_view) do
    require 'haml/helpers/action_view_mods'
    require 'haml/helpers/action_view_extensions'
  end
else
  require 'haml/helpers/action_view_mods'
  require 'haml/helpers/action_view_extensions'
end
require 'haml/helpers/xss_mods'
require 'haml/helpers/action_view_xss_mods'

module Haml
  class Compiler
    def precompiled_method_return_value_with_haml_xss
      "::Haml::Util.html_safe(#{precompiled_method_return_value_without_haml_xss})"
    end
    alias_method :precompiled_method_return_value_without_haml_xss, :precompiled_method_return_value
    alias_method :precompiled_method_return_value, :precompiled_method_return_value_with_haml_xss
  end

  module Helpers
    include Haml::Helpers::XssMods
  end

  module Util
    undef :rails_xss_safe? if defined? rails_xss_safe?
    def rails_xss_safe?; true; end
  end

end


Haml::Template.options[:ugly] = defined?(Rails) ? !Rails.env.development? : true
Haml::Template.options[:escape_html] = true

require 'haml/template/plugin'
```

Check for definition of Rails.env rather than Rails
user
```ruby
require 'haml/template/options'
require 'haml/engine'
if defined?(ActiveSupport)
  ActiveSupport.on_load(:action_view) do
    require 'haml/helpers/action_view_mods'
    require 'haml/helpers/action_view_extensions'
  end
else
  require 'haml/helpers/action_view_mods'
  require 'haml/helpers/action_view_extensions'
end
require 'haml/helpers/xss_mods'
require 'haml/helpers/action_view_xss_mods'

module Haml
  class Compiler
    def precompiled_method_return_value_with_haml_xss
      "::Haml::Util.html_safe(#{precompiled_method_return_value_without_haml_xss})"
    end
    alias_method :precompiled_method_return_value_without_haml_xss, :precompiled_method_return_value
    alias_method :precompiled_method_return_value, :precompiled_method_return_value_with_haml_xss
  end

  module Helpers
    include Haml::Helpers::XssMods
  end

  module Util
    undef :rails_xss_safe? if defined? rails_xss_safe?
    def rails_xss_safe?; true; end
  end

end


Haml::Template.options[:ugly] = defined?(Rails.env) ? !Rails.env.development? : true
Haml::Template.options[:escape_html] = true

require 'haml/template/plugin'
```
assistant