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Eric Bidelman
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webcomponents.js
webcomponents.js (v0 spec polyfills)
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[![Build Status](https://travis-ci.org/webcomponents/webcomponentsjs.svg?branch=master)](https://travis-ci.org/webcomponents/webcomponentsjs)
> **Note**. For polyfills that work with Custom Elements and Shadow DOM v1, see the [v1 branch](https://github.com/webcomponents/webcomponentsjs/tree/v1).
A suite of polyfills supporting the [Web Components](http://webcomponents.org) specs:
**Custom Elements**: allows authors to define their own custom tags ([spec](https://w3c.github.io/webcomponents/spec/custom/)).
**Custom Elements v0**: allows authors to define their own custom tags ([spec](https://w3c.github.io/webcomponents/spec/custom/)).
**HTML Imports**: a way to include and reuse HTML documents via other HTML documents ([spec](https://w3c.github.io/webcomponents/spec/imports/)).
**Shadow DOM**: provides encapsulation by hiding DOM subtrees under shadow roots ([spec](https://w3c.github.io/webcomponents/spec/shadow/)).
**Shadow DOM v0**: provides encapsulation by hiding DOM subtrees under shadow roots ([spec](https://w3c.github.io/webcomponents/spec/shadow/)).
This also folds in polyfills for `MutationObserver` and `WeakMap`.
## Releases
Pre-built (concatenated & minified) versions of the polyfills are maintained in the [tagged versions](https://github.com/webcomponents/webcomponentsjs/releases) of this repo. There are two variants: