mobilizon.chapril.org-mobil.../js/src/utils/support.ts
Thomas Citharel 6a52ca0d91
Produce and use webp pictures with different sizes
Signed-off-by: Thomas Citharel <tcit@tcit.fr>
2020-12-11 15:27:04 +01:00

11 lines
348 B
TypeScript

export function supportsWebPFormat(): boolean {
const elem = document.createElement("canvas");
if (elem.getContext && elem.getContext("2d")) {
// was able or not to get WebP representation
return elem.toDataURL("image/webp").indexOf("data:image/webp") === 0;
}
// very old browser like IE 8, canvas not supported
return false;
}