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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
/**
* Tests that if a pre-existing about:home cache exists, that it can
* be overwritten with new information.
*/
add_task(async function test_overwrite_cache() {
await withFullyLoadedAboutHome(async browser => {
await simulateRestart(browser);
const TEST_ID = "test_overwrite_cache_h1";
// We need the CSP meta tag in about: pages, otherwise we hit assertions in
// debug builds.
await injectIntoCache(
`
<html>
<head>
<meta http-equiv="Content-Security-Policy" content="default-src 'none'; object-src 'none'; script-src resource: chrome:; connect-src https:; img-src https: data: blob:; style-src 'unsafe-inline';">
</head>
<body>
<h1 id="${TEST_ID}">Something new</h1>
<div id="root"></div>
</body>
<script src="about:home?jscache"></script>
</html>`,
"window.__FROM_STARTUP_CACHE__ = true;"
);
await simulateRestart(browser, { withAutoShutdownWrite: false });
await SpecialPowers.spawn(browser, [TEST_ID], async testID => {
let target = content.document.getElementById(testID);
Assert.ok(target, "Found the target element");
});
});
});