blob: affd81fd572b2b16c3494364bf9eb8e0be64d251 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
let isWebpSupportedCache: boolean | undefined;
export function isWebpSupported() {
if (isWebpSupportedCache === undefined) {
const canvas = window.document.createElement('canvas');
canvas.width = 1;
canvas.height = 1;
isWebpSupportedCache = canvas.toDataURL('image/webp').startsWith('data:image/webp');
}
return isWebpSupportedCache;
}
|
