I'm working on a forum theme and started using web components but the form elements don't work.
I have stuff like this:
<input type="text" name="subject" maxlength="85" value="{$subject}" tabindex="1" />
and I tried translating it like that
<paper-input floatinglabel="" label="{$lang->thread_subject}" type="text" name="subject" maxlength="85" value="{$subject}" tabindex="1"></paper-input>
and all kind of variations also nesting the element inside but it doesn't work.
Same goes for all other input elements like submit buttons, checkboxes etc.
You can try something like this - http://jsbin.com/kurelaji/2/edit
For Polymer 1.0 see the new Iron Form element.