<!
DOCTYPE html>
<
html>
<
head>
<
title>postMessage called through another
frame</
title>
<
script type=
"application/javascript">
var PATH =
"/tests/dom/tests/mochitest/whatwg/postMessage_onOther.html";
function receiveMessage(evt)
{
if (evt.lastEventId !==
"")
{
fail(
"unexpected non-empty lastEventId");
return;
}
switch (window.location.href)
{
case
"http://example.com" + PATH:
receiveTopDomain(evt);
break;
case
"http://test1.example.com" + PATH:
receiveSubDomain(evt);
break;
default:
fail(
"unexpected location");
}
}
function fail(msg)
{
window.parent.postMessage(
"FAIL " + msg,
"*");
}
// The parent
frame sends
"start-test" to the subdomain
frame to start.
// The subdomain
frame then sets document.domain to the top domain so that
// the top domain
frame can access it. It then sends a message to the top
// domain
frame to tell it to do likewise; once that happens, the top domain
//
frame can then call a method on the subdomain
frame window, which will
// call a method *on the top domain window* to send a message to the parent
// window. We thus expect to see an event whose
source is the subdomain
// window -- *not* the top domain window. Therefore, its .origin should be:
//
//
http://test1.example.com
//
// and not
//
//
http://example.com
function receiveSubDomain(evt)
{
if (evt.origin !==
"http://mochi.test:8888")
{
fail(
"wrong top-domain origin: " + evt.origin);
return;
}
if (evt.data !==
"start-test")
{
fail(
"wrong top-domain message: " + evt.origin);
return;
}
document.domain =
"example.com";
window.parent.topDomainFrame.postMessage(
"domain-switch",
"http://example.com");
}
function receiveTopDomain(evt)
{
if (evt.origin !==
"http://test1.example.com")
{
fail(
"wrong subdomain origin: " + evt.origin);
return;
}
if (evt.data !==
"domain-switch")
{
fail(
"wrong subdomain message: " + evt.origin);
return;
}
if (evt.
source !== window.parent.subDomainFrame)
{
fail(
"wrong source on message from subdomain");
return;
}
document.domain =
"example.com";
window.parent.subDomainFrame.testSiblingPostMessage();
}
function testSiblingPostMessage()
{
window.parent.postMessage(
"test-finished",
"http://mochi.test:8888");
}
function setup()
{
var target = document.getElementById(
"location");
target.textContent = location.hostname +
":" + (location.port || 80);
}
window.addEventListener(
"message", receiveMessage);
window.addEventListener(
"load", setup);
</
script>
</
head>
<
body>
<
h1 id=
"location">No location!</
h1>
</
body>
</
html>
