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Added test for whether only fully active documents contribute to the joint session history.
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<body>
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<a id="link" href="joint-session-history-child2.html">Child1</a>.
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<iframe id="grandchild"></iframe>
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</body>
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<script>
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window.onload = function() {
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var link = document.getElementById("link");
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var grandchild = document.getElementById("grandchild");
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var timer = window.setInterval(poll, 100);
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function poll() {
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if (grandchild.getAttribute("data-grandchild-loaded")) {
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window.clearInterval(timer);
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link.click();
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}
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}
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grandchild.src="joint-session-history-grandchild1.html";
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};
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</script>
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<body>Child 2.</body>
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<script>
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// Servo doesn't support postMessage yet, so we poll on attributes.
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window.frameElement.setAttribute("data-child-loaded", true);
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</script>
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<body>
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<a id="link" href="joint-session-history-grandchild2.html">Grandchild1</a>.
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</body>
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<script>
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window.onload = function() {
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document.getElementById("link").click();
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}
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</script>
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<body>Grandchild2.</body>
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<script>
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// Servo doesn't support postMessage yet, so we poll on attributes.
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window.frameElement.setAttribute("data-grandchild-loaded", true);
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</script>
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<!doctype html>
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<meta charset="utf-8">
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<title>Do only fully active documents count for session history?</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<body>
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<iframe id="child"></iframe>
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</body>
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<script>
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async_test(function(t) {
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var old_history_len = window.history.length;
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var child = document.getElementById("child");
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var timer = window.setInterval(t.step_func(poll), 100);
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function poll() {
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if (child.getAttribute("data-child-loaded")) {
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// Check to see how many entries have been added to the session history.
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// The spec https://html.spec.whatwg.org/multipage/#joint-session-history
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// says that only fully active documents are included in the joint session history.
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// If only fully active documents count, then the only fully active document
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// is the child, with session length 1, so the joint session length change will be 1.
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// If all documents count, then the grandchild is reachable via the session history,
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// and it has session length 1, so the joint session length change will be 2.
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assert_equals(2, window.history.length - old_history_len);
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window.clearInterval(timer);
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t.done();
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}
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}
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child.src = "joint-session-history-child1.html";
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});
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</script>
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