I want to create quick prototypes of Polymer elements in a sandbox like JSFiddle or JavaScript Bin, but I can't get it working!
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Yes, you can, thanks to polygit.
Here's a boilerplate example you can fork: https://jsfiddle.net/kaycebasques/2q3fqehz/
HTML:
<base href="https://polygit.org/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link href="polymer/polymer.html" rel="import">
<dom-module id="x-example">
<template>
<style>
:host {
display: block;
}
</style>
<h1>polyfiddle</h1>
</template>
</dom-module>
<x-example></x-example>
JS:
// only need this when in the main document and on non-Chrome
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-example'
});
});

Kayce Basques
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1Use `
` as base to point to the master! :) – Pascal Gula Dec 03 '15 at 20:05 -
The jsfiddle is not working for me. I get ERR_CONNECTION_REFUSED when it tries to get the files – Gilberg Mar 02 '16 at 00:16
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@Gilberg it's working now... I know that the maintainers of [polygit](https://github.com/PolymerLabs/polygit) have been doing work on its infrastructure which has been causing issues over the last couple of weeks and would explain why you were seeing that error. – Kayce Basques Mar 06 '16 at 23:25