extracting content

http://stackoverflow.com/questions/27610589/access-contents-of-content-within-a-polymer-element

HTML

<link rel="import" href="http://www.polymer-project.org/0.5/components/polymer/polymer.html">
<polymer-element name="my-element">
    <template>
        <content id="content">Hey</content>
    </template>
    <script>
        Polymer('my-element', {
            ready: function() {
                alert(this.$.content.getDistributedNodes()[0].data);
            }
        });
    </script>
</polymer-element>
<my-element>Important text</my-element>