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<html>
<head>
<script>
var oldHistoryObject = null;
var bc = new BroadcastChannel("bug1155730_part1");
bc.onmessage = (msgEvent) => {
var msg = msgEvent.data;
var command = msg.command;
if (command == "test") {
var currentCase = msg.currentCase;
test(currentCase);
}
}
function test(currentCase) {
var assertIs = [];
var assertOk = [];
var assertIsNot = [];
switch (currentCase) {
case 1: {
assertOk.push([history.scrollRestoration, "History object has scrollRestoration property."]);
assertIs.push([history.scrollRestoration, "auto", "history.scrollRestoration's default value should be 'auto'."]);
history.scrollRestoration = "foobar";
assertIs.push([history.scrollRestoration, "auto", "Invalid enum value should not change the value of an attribute."]);
history.scrollRestoration = "manual";
assertIs.push([history.scrollRestoration, "manual", "Valid enum value should change the value of an attribute."]);
history.scrollRestoration = "auto";
assertIs.push([history.scrollRestoration, "auto", "Valid enum value should change the value of an attribute."]);
bc.postMessage({command: "asserts", currentCase, assertIs, assertOk});
document.getElementById("bottom").scrollIntoView();
window.location.reload(false);
break;
}
case 2: {
assertIsNot.push([Math.round(window.scrollY), 0, "Should have restored scrolling."]);
assertIs.push([history.scrollRestoration, "auto", "Should have the same scrollRestoration as before reload."]);
history.scrollRestoration = "manual";
bc.postMessage({command: "asserts", currentCase, assertIs, assertIsNot});
window.location.reload(false);
break;
}
case 3: {
assertIs.push([window.scrollY, 0, "Should not have restored scrolling."]);
assertIs.push([history.scrollRestoration, "manual", "Should have the same scrollRestoration as before reload."]);
bc.postMessage({command: "asserts", currentCase, assertIs});
bc.close();
window.close();
break;
}
}
}
window.onpageshow = (event) => {
bc.postMessage({command: "pageshow", persisted: event.persisted});
}
</script>
</head>
<body>
<div style="border: 1px solid black; height: 5000px;">
</div>
<div id="bottom">Hello world</div>
<a href="#hash" name="hash">hash</a>
</body>
</html>
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