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Test Info:
- Manifest: dom/tests/browser/browser.toml
"use strict";
const DIRPATH = getRootDirectory(gTestPath).replace(
""
);
const PATH = DIRPATH + "file_postMessage_parent.html";
// A bunch of boilerplate which needs to be dealt with.
add_task(async function () {
// Open a window with fission force-enabled in it.
let win = await BrowserTestUtils.openNewBrowserWindow({
fission: true,
remote: true,
});
try {
// Get the tab & browser to perform the test in.
let tab = win.gBrowser.selectedTab;
let browser = tab.linkedBrowser;
// Start loading the original URI, then wait until it is loaded.
BrowserTestUtils.startLoadingURIString(browser, URL1);
await BrowserTestUtils.browserLoaded(browser, false, URL1);
info("Chrome script has loaded initial URI.");
await SpecialPowers.spawn(
browser,
[{ URL1, URL2, URL3 }],
async ({ URL1, URL2, URL3 }) => {
let iframe = content.document.createElement("iframe");
content.document.body.appendChild(iframe);
info("Chrome script created iframe");
// Here and below, we have to store references to things in the
// iframes on the content window, because all chrome references
// to content will be turned into dead wrappers when the iframes
// are closed.
content.win0 = iframe.contentWindow;
content.bc0 = iframe.browsingContext;
ok(
!Cu.isDeadWrapper(content.win0),
"win0 shouldn't be a dead wrapper before navigation"
);
// Helper for waiting for a load.
function waitLoad() {
return new Promise(resolve => {
iframe.addEventListener(
"load",
() => {
info("Got an iframe load event!");
resolve();
},
{ once: true }
);
});
}
function askLoad(url) {
info("Chrome script asking for load of " + url);
iframe.contentWindow.postMessage(
{
action: "navigate",
location: url,
},
"*"
);
info("Chrome script done calling PostMessage");
}
// Check that BC and WindowProxy are preserved across navigations.
iframe.contentWindow.location = URL1;
await waitLoad();
content.win1 = iframe.contentWindow;
let chromeWin1 = iframe.contentWindow;
let chromeWin1x = Cu.waiveXrays(iframe.contentWindow);
content.win1x = Cu.waiveXrays(iframe.contentWindow);
Assert.notEqual(
chromeWin1,
chromeWin1x,
"waiving xrays creates a new thing?"
);
content.bc1 = iframe.browsingContext;
is(
content.bc0,
content.bc1,
"same to same-origin BrowsingContext match"
);
is(content.win0, content.win1, "same to same-origin WindowProxy match");
ok(
!Cu.isDeadWrapper(content.win1),
"win1 shouldn't be a dead wrapper before navigation"
);
ok(
!Cu.isDeadWrapper(chromeWin1),
"chromeWin1 shouldn't be a dead wrapper before navigation"
);
askLoad(URL2);
await waitLoad();
content.win2 = iframe.contentWindow;
content.bc2 = iframe.browsingContext;
// When chrome accesses a remote window proxy in content, the result
// should be a remote outer window proxy in the chrome compartment, not an
// Xray wrapper around the content remote window proxy. The former will
// throw a security error, because @@toPrimitive can't be called cross
// process, while the latter will result in an opaque wrapper, because
// XPConnect doesn't know what to do when trying to create an Xray wrapper
Assert.throws(
() => {
dump("content.win1 " + content.win1 + "\n");
},
/SecurityError: Permission denied to access property Symbol.toPrimitive on cross-origin object/,
"Should get a remote outer window proxy when accessing old window proxy"
);
Assert.throws(
() => {
dump("content.win2 " + content.win2 + "\n");
},
/SecurityError: Permission denied to access property Symbol.toPrimitive on cross-origin object/,
"Should get a remote outer window proxy when accessing new window proxy"
);
// If we fail to transplant existing non-remote outer window proxies, then
// after we navigate the iframe existing chrome references to the window will
// become dead wrappers. Also check content.win1 for thoroughness, though
// we don't nuke content-content references.
ok(
!Cu.isDeadWrapper(content.win1),
"win1 shouldn't be a dead wrapper after navigation"
);
ok(
!Cu.isDeadWrapper(chromeWin1),
"chromeWin1 shouldn't be a dead wrapper after navigation"
);
ok(
Cu.isDeadWrapper(chromeWin1x),
"chromeWin1x should be a dead wrapper after navigation"
);
ok(
Cu.isDeadWrapper(content.win1x),
"content.win1x should be a dead wrapper after navigation"
);
is(
content.bc1,
content.bc2,
"same to cross-origin navigation BrowsingContext match"
);
is(
content.win1,
content.win2,
"same to cross-origin navigation WindowProxy match"
);
ok(
!Cu.isDeadWrapper(content.win1),
"win1 shouldn't be a dead wrapper after navigation"
);
askLoad(URL3);
await waitLoad();
content.win3 = iframe.contentWindow;
content.bc3 = iframe.browsingContext;
is(
content.bc2,
content.bc3,
"cross to cross-origin navigation BrowsingContext match"
);
is(
content.win2,
content.win3,
"cross to cross-origin navigation WindowProxy match"
);
askLoad(URL1);
await waitLoad();
content.win4 = iframe.contentWindow;
content.bc4 = iframe.browsingContext;
is(
content.bc3,
content.bc4,
"cross to same-origin navigation BrowsingContext match"
);
is(
content.win3,
content.win4,
"cross to same-origin navigation WindowProxy match"
);
}
);
} finally {
await BrowserTestUtils.closeWindow(win);
}
});