<html >
<head >
<meta charset="utf-8" >
<script >
addEventListener("pageshow" , function() {
var bc = new BroadcastChannel("browser_browsingContext" );
function frameData() {
var win = SpecialPowers.wrap(frames[0]);
bc.postMessage(
{ framesLength: frames.length,
browsingContextId: win.docShell.browsingContext.id,
outerWindowId: win.docShell.outerWindowID
});
}
bc.onmessage = function(event) {
if (event.data == "createiframe" ) {
let frame = document.createElement("iframe" );
frame .src = "dummy_page.html" ;
document.body .appendChild(frame );
frame .onload = frameData;
} else if (event.data == "nextpage" ) {
bc.close();
location.href = "onload_message.html" ;
} else if (event.data == "queryframes" ) {
frameData();
} else if (event.data == "close" ) {
bc.postMessage("closed" );
bc.close();
window.close();
}
}
bc.postMessage("pageshow" );
});
</script >
</head >
<body >
This file posts a message containing "pageshow" to a BroadcastChannel and
keep the channel open for commands.
</body >
</html >
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