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<!doctype html>
<meta charset="utf-8">
<script>
"use strict";
// A 628-byte TrueType font.
const FONT_BASE64 =
"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";
// Collect each worker's constructor status and load error.
async function createFontFacesConcurrently(aCount) {
const bytes = Uint8Array.from(atob(FONT_BASE64), c => c.charCodeAt(0));
const workers = await Promise.all(
Array.from(
{ length: aCount },
() =>
new Promise(resolve => {
const worker = new Worker(
"file_fontface_buffer_concurrent_worker.js"
);
worker.onmessage = () => resolve(worker);
})
)
);
const at = Date.now() + 100;
return Promise.all(
workers.map(
worker =>
new Promise(resolve => {
worker.onmessage = ({ data }) => resolve(data);
worker.postMessage({ bytes: bytes.slice(), at });
})
)
);
}
</script>