Does Polymer 1.0 no longer use Shadow DOM? Why?

[Ajedi32]

I was playing around with the new version of Polymer, and one thing I noticed was that Polymer doesn't seem to use Shadow DOM at all anymore:

Polymer 0.5: http://plnkr.co/edit/JpgnpZedLocCOKbs5XB0?p=preview

Polymer 1.0: http://plnkr.co/edit/J1N8BysaKSZnYGPcCdQj?p=preview

If I open the dev tools in Chrome and inspect the custom elements in these examples, I can see that Polymer 0.5 puts the template content in a special "shadow-root" node, whereas Polymer 1.0 just uses a span element with a couple special classes on it. Why is this?

I'm aware that Polymer 1.0 uses the new shady DOM polyfill instead of the full shadow DOM polyfill, but Chrome supports shadow dom natively AFAIK so that shouldn't effect anything, right?

What's going on here?

[Arthur Evans]

See the top of the local DOM chapter of the docs:

Note: Currently Polymer uses shady DOM by default on all browsers. To opt-in to using shadow DOM where available, seeGlobal settings

https://www.polymer-project.org/1.0/docs/devguide/local-dom.html

You can enable native shadow DOM where available, but the default mode helps people ensure that their code works properly across platforms.

Arthur

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[Ajedi32]

Ah okay, that makes sense. Thanks.