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<!DOCTYPE HTML>
<html>
<head>
<title>File that loads a non-script file-extension as script</title>
</head>
<body>
<script>
/* global equal */
const files = ["file_nonscript",
"file_nonscript.xyz",
"file_nonscript.html",
"file_nonscript.txt",
"file_nonscript.json"];
async function run() {
window.counter = 0;
for (let file of files) {
let script = document.createElement("script");
let promise = new Promise((resolve, reject) => {
script.addEventListener("error", resolve, {once: true});
script.addEventListener("load", reject, {once: true});
});
script.src = file;
document.body.append(script);
let event = await promise;
equal(event.type, "error");
equal(window.counter, 0);
}
let script = document.createElement("script");
let promise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
script.addEventListener("error", reject, {once: true});
});
script.src = "file_script.js";
document.body.append(script);
let event = await promise;
equal(event.type, "load");
equal(window.counter, 1);
window.postMessage("done", "*");
}
window.addEventListener("message", run, {once: true})
</script>
</html>