Small jQuery extension to clone elements without Ember/Metamorph metadata

safeClone.jquery.js.coffee

# Small extension to create a clone of the element without
# metamorph binding tags and ember metadata

$.fn.extend
  safeClone: ->
    clone = $(@).clone()
    
    # remove content bindings
    clone.find('script[id^=metamorph]').remove()
    
    # remove attr bindings
    clone.find('*').each ->
      $this = $(@)
      $.each $this[0].attributes, (index, attr) ->
        return if attr.name.indexOf('data-bindattr') == -1
        $this.removeAttr(attr.name)
        
    # remove ember IDs
    clone.removeAttr('id') if clone.attr('id') && clone.attr('id').indexOf('ember') != -1
    clone.find('[id^=ember]').removeAttr('id')
    clone