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<!DOCTYPE html>
<meta charset="utf-8">
<title>changing srcdoc to a different srcdoc</title>
<link rel="help" href="https://github.com/whatwg/html/issues/6809#issuecomment-905677979">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../resources/helpers.js"></script>
<script>
"use strict";
// Note: bfcache won't mess with any windows with openers, so it doesn't
// interfere with these tests.
promise_test(async t => {
// Set up a window whose iframe contains [normal page, srcdoc] entries.
const w = await openWindow("../../resources/has-iframe.html", t);
const iframe = w.document.querySelector("iframe");
await waitToAvoidReplace(t);
iframe.srcdoc = srcdocThatPostsParentOpener("srcdoc1");
await waitForMessage(iframe.contentWindow);
assert_equals(w.history.length, 2);
// Now navigate to a different srcdoc
iframe.srcdoc = srcdocThatPostsParentOpener("srcdoc2");
// Test that it's a replace.
await waitForMessage(iframe.contentWindow);
assert_equals(w.history.length, 2,
"history.length must not change since it was a replace");
assert_equals(
iframe.contentDocument.querySelector("p").textContent,
"srcdoc2",
"Sanity check: the srcdoc document did indeed update"
);
}, "changing srcdoc does a replace navigation since the URL is still " +
"about:srcdoc");
promise_test(async t => {
// Set up a window whose iframe contains [normal page, srcdoc] entries.
const w = await openWindow("../../resources/has-iframe.html", t);
const iframe = w.document.querySelector("iframe");
await waitToAvoidReplace(t);
iframe.srcdoc = srcdocThatPostsParentOpener("srcdoc1");
await waitForMessage(iframe.contentWindow);
assert_equals(w.history.length, 2);
// Now navigate to about:srcdoc#yo
iframe.contentWindow.location.href = "about:srcdoc#yo";
assert_equals(iframe.contentWindow.location.href, "about:srcdoc#yo");
assert_equals(w.history.length, 3);
// Now navigate to a different srcdoc
iframe.srcdoc = srcdocThatPostsParentOpener("srcdoc2");
// Test that it's a push back to about:srcdoc.
await waitForMessage(iframe.contentWindow);
assert_equals(
w.history.length,
4,
"history.length must increase since it was a push"
);
assert_equals(iframe.contentWindow.location.href, "about:srcdoc");
assert_equals(
iframe.contentDocument.querySelector("p").textContent,
"srcdoc2",
"Sanity check: the srcdoc document did indeed update"
);
// Test that we can go back to about:srcdoc#yo.
w.history.back();
await waitForMessage(iframe.contentWindow);
assert_equals(iframe.contentWindow.location.href, "about:srcdoc#yo");
assert_equals(
iframe.contentDocument.querySelector("p").textContent,
"srcdoc1",
"srcdoc content must be restored from history"
);
}, "changing srcdoc to about:srcdoc#yo then another srcdoc does two push " +
"navigations and we can navigate back");
</script>
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