A sample New View backbone class that uses iframe.

new_view.js.coffee

Lifelane.Views.Posts ||= {}

class Lifelane.Views.Posts.NewView extends Backbone.View    
  template: JST["backbone/templates/posts/new"]
  
  events:
    "submit #create-post": "save"
  
  # The constructor for creating new post.
  constructor: (options) ->
    super(options)
    @model = new @collection.model()

    @model.bind("change:errors", () => this.render())
  
  # Saving a new post.
  # options:
  #  success
  #  error
  #  iframe
  #    
  save: (e) ->
    e.preventDefault()
    e.stopPropagation()
      
    @model.unset("errors")
    
    @collection.create(@model.toJSON(), 
      success: (post) =>
        if(post.isNew())
          @model.set({errors: post})
        else
          @model = post
          window.location.hash = "/index"
        
      error: (post, jqXHR) =>
        @model.set({errors: $.parseJSON(jqXHR.responseText)})
      
      iframe: true
    )
    
  render: ->
    $(this.el).html(@template(@model.toJSON() ))
    this.$("form").customBackboneLink(@model)
    
    this