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Convert the font-test ttx helper function to use the Fetch API

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By replacing `XMLHttpRequest` with a `fetch` call, the helper function can be modernized to use async/await instead.
Note that the headers doesn't seem necessary to set now, since:
 - The Fetch API provides a method for accessing the response as *text*, which renders the "Content-type" header unnecessary.
 - According to https://developer.mozilla.org/en-US/docs/Glossary/Forbidden_header_name, the "Content-length" header isn't necessary.
This commit is contained in:
Jonas Jenwald 2021-04-20 23:35:25 +02:00
parent 3d55b2b10e
commit 7b8d2495ca
1 changed files with 9 additions and 19 deletions
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28
test/font/fontutils.js
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@ -65,26 +65,16 @@ function encodeFontData(data) {
return buffer;
}
function ttx(data) {
return new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest();
xhr.open("POST", "/ttx");
const encodedData = encodeFontData(data);
xhr.setRequestHeader("Content-type", "text/plain");
xhr.setRequestHeader("Content-length", encodedData.length);
xhr.onreadystatechange = function getPdfOnreadystatechange(e) {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
resolve(xhr.responseText);
} else {
reject(new Error(xhr.statusText));
}
}
};
xhr.send(encodedData);
async function ttx(data) {
const response = await fetch("/ttx", {
method: "POST",
body: encodeFontData(data),
});
if (!response.ok) {
throw new Error(response.statusText);
}
return response.text();
}
function verifyTtxOutput(output) {