16 lines
397 B
HTML
16 lines
397 B
HTML
<?xml version="1.0" encoding="utf-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<script>
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customElements.define('custom-el-1',
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class extends HTMLElement {
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constructor () {
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super()
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this.attachShadow({ mode: 'open' })
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this.shadowRoot.innerHTML = '<span/>'
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}
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})
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</script>
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</head>
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<body>
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<custom-el-1/>
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