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"use strict";
const DIRPATH = getRootDirectory(gTestPath).replace(
"chrome://mochitests/content/",
""
);
const PATH = DIRPATH + "file_postMessage_parent.html";
const URL1 = `https://example.com/${PATH}`;
const URL2 = `https://example.org/${PATH}`;
function listenForCrash(win) {
function listener(event) {
ok(false, "a crash occurred");
}
win.addEventListener("oop-browser-crashed", listener);
registerCleanupFunction(() => {
win.removeEventListener("oop-browser-crashed", listener);
});
}
add_task(async function () {
let win = await BrowserTestUtils.openNewBrowserWindow({
fission: true,
private: true,
remote: true,
});
listenForCrash(win);
try {
let tab = win.gBrowser.selectedTab;
let browser = tab.linkedBrowser;
BrowserTestUtils.startLoadingURIString(browser, URL1);
await BrowserTestUtils.browserLoaded(browser, false, URL1);
async function loadURL(url) {
let iframe = content.document.createElement("iframe");
content.document.body.appendChild(iframe);
iframe.contentWindow.location = url;
await new Promise(resolve =>
iframe.addEventListener("load", resolve, { once: true })
);
return iframe.browsingContext;
}
function length() {
return content.length;
}
let outer = await SpecialPowers.spawn(browser, [URL2], loadURL);
let inner = await SpecialPowers.spawn(outer, [URL2], loadURL);
is(await SpecialPowers.spawn(outer, [], length), 1, "have 1 inner frame");
is(await SpecialPowers.spawn(browser, [], length), 1, "have 1 outer frame");
// Send a message from the outer iframe to the inner one.
//
// This would've previously crashed the content process that URL2 is running
// in.
await SpecialPowers.spawn(outer, [], () => {
content.frames[0].postMessage("foo", "*");
});
// Now send a message from the inner frame to the outer one.
await SpecialPowers.spawn(inner, [], () => {
content.parent.postMessage("bar", "*");
});
// Assert we've made it this far.
ok(true, "didn't crash");
} finally {
await BrowserTestUtils.closeWindow(win);
}
});
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