pdf.js.mirror/test/font/fontutils.js
Jonas Jenwald 5b368dd58a Remove the Uint8Array.prototype.toHex(), Uint8Array.prototype.toBase64(), and Uint8Array.fromBase64() polyfills
(During rebasing of the previous patches I happened to look at the polyfills and noticed that this one could be removed now.)

See:
 - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/toHex#browser_compatibility
 - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/toBase64#browser_compatibility
 - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/fromBase64#browser_compatibility

Note that technically this functionality can still be disabled via a preference in Firefox, however that's slated for removal in [bug 1985120](https://bugzilla.mozilla.org/show_bug.cgi?id=1985120).
Looking at the Firefox source-code, see https://searchfox.org/firefox-main/search?q=array.tobase64%28%29&path=&case=false&regexp=false, you can see that it's already being used *unconditionally* elsewhere in the browser hence removing the polyfills ought to be fine (since toggling the preference would break other parts of the browser).
2026-01-29 17:27:43 +01:00

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JavaScript

/*
* Copyright 2013 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
async function ttx(data) {
const response = await fetch("/ttx", {
method: "POST",
body: data.toBase64(),
});
if (!response.ok) {
throw new Error(response.statusText);
}
return response.text();
}
function verifyTtxOutput(output) {
const m = /^<error>(.*?)<\/error>/.exec(output);
if (m) {
throw m[1];
}
}
export { ttx, verifyTtxOutput };