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<!DOCTYPE html>
<meta charset=utf-8>
<meta name="timeout" content="long">
<title>Clear-Site-Data: cache for bfcache</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="support/clear-cache-helper.sub.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="/common/utils.js"></script>
<script src="/html/browsers/browsing-the-web/back-forward-cache/resources/helper.sub.js"></script>
<script type="module">
const sameOrigin =
'https://{{host}}:{{ports[https][0]}}';
const subdomainOrigin =
'https://{{hosts[][www2]}}:{{ports[https][0]}}';
const crossSiteOrigin =
'https://{{hosts[alt][]}}:{{ports[https][0]}}';
// The tests are built on top of the back-forward-cache test harness.
// Here is the steps for the tests:
// 1. Open a new window and navigate to a test URL.
// 2. Navigate the window to a second page.
// 3. Trigger the clear-site-data header either by window.open() or loading an
// iframe from the second page.
// 4. Navigate back to the first page.
// 5. Assert that the first page is or is not cached.
function runBfCacheClearTest(params, description) {
runBfcacheTest(
{
targetOrigin: sameOrigin,
scripts: ["/clear-site-data/support/clear-cache-helper.sub.js"],
funcBeforeBackNavigation: async (getUrlParams, mode) => {
const cacheHelper = self.crypto.randomUUID();
const testUrl = getUrl(cacheHelper, getUrlParams);
let clearingPromise;
if (mode === "window") {
clearingPromise = new Promise(resolve => {
window.addEventListener("message", resolve, {once: true});
window.open(testUrl);
});
} else if (mode === "iframe") {
clearingPromise = new Promise(resolve => {
const iframe = document.createElement("iframe");
iframe.src = testUrl;
document.body.appendChild(iframe);
iframe.onload = resolve;
});
} else {
throw new Error("Unsupported mode");
}
await clearingPromise;
},
argsBeforeBackNavigation: [params.getUrlParams, params.mode],
...params,
},
description
);
}
runBfCacheClearTest(
{
getUrlParams: {
clear: "cache",
},
mode: "iframe",
shouldBeCached: false,
},
"BfCached document shouldn't be cached after receiving clear-cache header from the same origin."
);
runBfCacheClearTest(
{
targetOrigin: subdomainOrigin,
getUrlParams: {
subdomain: true,
clear: "cache",
},
mode: "iframe",
shouldBeCached: true,
},
"BfCached document should be cached after receiving clear-cache header from a subdomain."
);
runBfCacheClearTest(
{
targetOrigin: crossSiteOrigin,
getUrlParams: {
secondOrigin: true,
clear: "cache",
},
mode: "iframe",
shouldBeCached: true,
},
"BfCached document should be cached after receiving clear-cache header from another site."
);
runBfCacheClearTest(
{
getUrlParams: {
clear: "cache",
},
mode: "window",
shouldBeCached: false,
},
"BfCached document shouldn't be cached after receiving clear-cache header from another window."
);
</script>
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