Rails 3 app doesn't redirect after AJAX form submission

Question

I have an Authlogic login form with :remote => true that does a little inline validation with an RJS template if the user/password isn't valid. This works fine, but when the credentials are valid, it doesn't properly redirect elsewhere.

Here's the controller that responds to the form input:

class UserSessionsController < ApplicationController
  respond_to :html, :js

  before_filter :require_no_user, :only => [:new, :create]
  before_filter :require_user, :only => :destroy

  def new
    @user_session = UserSession.new
  end

  def create
    @user_session = UserSession.new(params[:user_session])

    respond_to do |format|
      if @user_session.save     
        flash[:notice] = "Login successful!"
        format.html { redirect_to account_url }
      else
        format.js
      end
    end
  end

  def destroy
    current_user_session.destroy
    flash[:notice] = "Logout successful!"
    redirect_to root_path
  end

end

The format.js part works but if the user/password are good (format.html), nothing happens. However, if I look a development.log, it is requesting the account_url page. It's just not redirecting you in the browser. I think it's returning the account page via AJAX and I really just want a normal redirect.

The HTML for the form is this:

<%= simple_form_for(
:user_session, @user_session, 
:url => { :controller => 'user_sessions', :action => "create" },
:html => { :id => 'login-dropdown' }, :remote => true) do |f| %>

Answer 1

I found a way to fix it. Per http://www.ruby-forum.com/topic/168406#945053, I added the following to my application controller:

def redirect_to(options = {}, response_status = {})
  if request.xhr?
    render(:update) {|page| page.redirect_to(options)}
  else
    super(options, response_status)
  end
end

This prevents the redirect response from being delivered via xhr. If there's a more "correct" way of doing this in the controller, I'd like to hear it, though.