cop-april2017-webcomponents/index.html at master · millitza/cop-april2017-webcomponents · GitHub

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<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="generator" content="Polymer Starter Kit">
    <meta name="viewport" content="width=device-width, minimum-scale=1, initial-scale=1, user-scalable=yes">

    <title>Web components April 2017</title>

    <script>
        // Setup Polymer options
        window.Polymer = {
            dom: 'shadow',
            lazyRegister: true,
        };
        // Load webcomponentsjs polyfill if browser does not support native
        // Web Components
        (function() {
            'use strict';
            var onload = function() {
                // For native Imports, manually fire WebComponentsReady so user code
                // can use the same code path for native and polyfill'd imports.
                if (!window.HTMLImports) {
                    document.dispatchEvent(
                        new CustomEvent('WebComponentsReady', {bubbles: true})
                    );
                }
            };
            var webComponentsSupported = (
                'registerElement' in document
                && 'import' in document.createElement('link')
                && 'content' in document.createElement('template')
            );
            if (!webComponentsSupported) {
                var script = document.createElement('script');
                script.async = true;
                script.src = '/bower_components/webcomponentsjs/webcomponents-lite.min.js';
                script.onload = onload;
                document.head.appendChild(script);
            } else {
                onload();
            }
        })();
        // Load pre-caching Service Worker
        if ('serviceWorker' in navigator) {
            window.addEventListener('load', function() {
                navigator.serviceWorker.register('/service-worker.js');
            });
        }
    </script>

    <link rel="import" href="/src/my-app.html">

    <style>
        body {
            margin: 0;
            font-family: 'Roboto', 'Noto', sans-serif;
            line-height: 1.5;
            min-height: 100vh;
            background-color: #eeeeee;
        }
    </style>
</head>
<body>
<!--Change this tag to include your app element-->
<my-app></my-app>
</body>
</html>