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astro/packages/renderers/renderer-lit/client-shim.js
2021-07-19 18:23:39 -07:00

12 lines
421 B
JavaScript

async function polyfill() {
const { hydrateShadowRoots } = await import('@webcomponents/template-shadowroot/template-shadowroot.js');
hydrateShadowRoots(document.body);
}
const polyfillCheckEl = new DOMParser()
.parseFromString(`<p><template shadowroot="open"></template></p>`, 'text/html', {includeShadowRoots: true})
.querySelector('p');
if (!polyfillCheckEl || !polyfillCheckEl.shadowRoot) {
polyfill();
}