[polymer-dev] Automatic node finding

[David Avenante]

Hi,

I look more and more on the WebComponent approach and so on Polymerjs.

I'm surprising of the add "Automatic node finding" on the lib.
What is the interest of this practice cause in the HTML specification "The 
ID must be unique in a document"  
(https://developer.mozilla.org/en-US/docs/Web/API/element.id)

I see already the result in this case. 

https://github.com/djalmaaraujo/gravatar-image/blob/gh-pages/src/gravatar.html

If you look at the template :

        <a id="username">
           <img id="username_image" />
        </a>

So the creator of the component use a facility of polymer who is a bad practice 
at the document level.
In this case if I have a collection of gravatar images my dom looks like :

<ul>

<li>
<gravatar-image username="xxxx" size="80" hash="">
        <a id="username" href="http://www.gravatar.com/xxxx";>
            <img id="username_image" 
src="http://www.gravatar.com/avatar/xxxx.jpg?s=80";>
        </a>       
    </gravatar-image>
</li>

<li>
<gravatar-image username="yyyy" size="80" hash="">
        <a id="username" href="http://www.gravatar.com/yyyy";>
            <img id="username_image" 
src="http://www.gravatar.com/avatar/yyyy.jpg?s=80";>
        </a>       
    </gravatar-image>
</li>


</ul>

So many same id on my document.

Maybe the Automatic node finding is not a good solution and add an another 
question in an another thread ;)





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