Yoshi Cheng-Hao Huang
219073d4f5
Make sure the <script> is inserted after <link rel="modulepreload"> is done, so the result would be consistent. Otherwise the <script> might also be preloaded by the speculative parser and will join a single in-flight fetch with the <link>. Differential Revision: https://phabricator.services.mozilla.com/D313496
45 lines
1.8 KiB
HTML
45 lines
1.8 KiB
HTML
<!doctype html>
|
|
<meta charset=utf-8>
|
|
<title>modulepreload with an invalid integrity does not poison a later import (with an import map)</title>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script type="importmap">
|
|
{
|
|
"imports": {
|
|
"test": "https://example.com/test.js"
|
|
}
|
|
}
|
|
</script>
|
|
<body>
|
|
<script>
|
|
// As modulepreload-sri.html, but with an import map registered. The import map
|
|
// does not affect resolution of module1.js, so it must not change the result:
|
|
// a modulepreload whose integrity check fails is a fetch error, which is not
|
|
// cached in the module map, so a later no-integrity <script type=module> for
|
|
// the same URL fetches it again and loads successfully.
|
|
// https://html.spec.whatwg.org/#fetch-a-single-module-script
|
|
//
|
|
// The <script> is only inserted after the modulepreload has finished, so the
|
|
// two never join a single in-flight fetch.
|
|
promise_test(async () => {
|
|
const link = document.createElement('link');
|
|
link.rel = 'modulepreload';
|
|
link.href = 'resources/module1.js';
|
|
link.integrity = 'sha384-invalid';
|
|
await new Promise((resolve, reject) => {
|
|
link.onload = () => reject(new Error('modulepreload should have failed its integrity check'));
|
|
link.onerror = resolve;
|
|
document.head.appendChild(link);
|
|
});
|
|
|
|
const script = document.createElement('script');
|
|
script.type = 'module';
|
|
script.src = 'resources/module1.js';
|
|
await new Promise((resolve, reject) => {
|
|
script.onload = resolve;
|
|
script.onerror = () => reject(new Error('script should have loaded'));
|
|
document.body.appendChild(script);
|
|
});
|
|
}, "A module script should load even if an earlier modulepreload for the same URL failed its integrity check, with an import map registered");
|
|
</script>
|