I have an action `email` in my controller of application running on www.example.com and I am trying to send the form data of `email` to `www.data.example.com/email` where my another application receives the request and I am able to save the data in `js` format. But I want to send back the acknowledgement to www.example.com and replace the html using `rjs` template. Here are some code for you reference:

> 
> **email.html.erb** called on ***www.example.com***
> 
> 
> 

```
   <div id="div_content">
    <%= form_for(@user, :url => "http://data.example.com/mail", :remote => true) do |f| %>
    <%= f.label :email %>
    <%= f.text_field :email%>
    <% end %>
   </div>

```

> 
> **email** action of application on : data.example.com/email -
> 
> 
> 

```
def email
  @user = User.create(params[:user])
  respond_to do |format|
    if @user.save!
       format.html { redirect_to(user_page_path(@user.vip_id), :notice => 'Thank you! You are now on our priority list.') }
       format.js
    else
       format.html { render :text => "user can not be saved at this moment!"}
    end
  end
end

```

> 
> **email.js.rjs** called on **www.data.example.com/email**
> 
> 
> 

```
page.replace_html :div_content, :partial => "show", :object => @user

```

I can see in my log that request comes all the way from one domain to sub domain and even action gets triggered but, I can not get the response back to the main domain. So, is there any way to send a callback to main domain. I just want to reflect changes there at the form which is inside `div_content` div and want to replace with content of `_show.html.erb` which I have on my sub domain.

Many Thanks,  

Surya :)