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This module provides a method which will redirect the browser to use the secured HTTPS protocol. This will ensure that users' sensitive information will be transferred safely over the internet. You should always force the browser to use HTTPS when you're transferring sensitive information such as user authentication, account information, or credit card information.

Note that if you are really concerned about your application security, you might consider using config.force_ssl in your config file instead. That will ensure all the data is transferred via HTTPS, and will prevent the user from getting their session hijacked when accessing the site over unsecured HTTP protocol.

Included Modules
ACTION_OPTIONS = [:only, :except, :if, :unless]
REDIRECT_OPTIONS = [:status, :flash, :alert, :notice]
URL_OPTIONS = [:protocol, :host, :domain, :subdomain, :port, :path]
Instance Public methods
force_ssl_redirect(host_or_options = nil)

Redirect the existing request to use the HTTPS protocol.


  • host_or_options - Either a host name or any of the URL and redirect options available to the force_ssl method.

# File actionpack/lib/action_controller/metal/force_ssl.rb, line 77
def force_ssl_redirect(host_or_options = nil)
  unless request.ssl?
    options = {
      protocol: "https://",
      host: request.host,
      path: request.fullpath,
      status: :moved_permanently

    if host_or_options.is_a?(Hash)
    elsif host_or_options
      options[:host] = host_or_options

    secure_url = ActionDispatch::Http::URL.url_for(options.slice(*URL_OPTIONS))
    flash.keep if respond_to?(:flash) && request.respond_to?(:flash)
    redirect_to secure_url, options.slice(*REDIRECT_OPTIONS)