"use strict";
async function testImageFormat(imageData) {
  if ("Image" in globalThis) {
    return new Promise((resolve) => {
      const image = new Image();
      image.onload = () => {
        resolve(true);
      };
      image.onerror = () => {
        resolve(false);
      };
      image.src = imageData;
    });
  }
  if ("createImageBitmap" in globalThis && "fetch" in globalThis) {
    try {
      const blob = await (await fetch(imageData)).blob();
      await createImageBitmap(blob);
    } catch (e) {
      return false;
    }
    return true;
  }
  return false;
}

export { testImageFormat };
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