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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test Summary:
// 1. Open about:sessionrestore where formdata is a JS object, not a string
// 1a. Check that #sessionData on the page is readable after JSON.parse (skipped, checking formdata is sufficient)
// 1b. Check that there are no backslashes in the formdata
// 1c. Check that formdata doesn't require JSON.parse
//
// 2. Use the current state (currently about:sessionrestore with data) and then open that in a new instance of about:sessionrestore
// 2a. Check that there are no backslashes in the formdata
// 2b. Check that formdata doesn't require JSON.parse
//
// 3. [backwards compat] Use a stringified state as formdata when opening about:sessionrestore
// 3a. Make sure there are nodes in the tree on about:sessionrestore (skipped, checking formdata is sufficient)
// 3b. Check that there are no backslashes in the formdata
// 3c. Check that formdata doesn't require JSON.parse
const CRASH_STATE = {
windows: [
{
tabs: [
{ entries: [{ url: "about:mozilla", triggeringPrincipal_base64 }] },
],
},
],
};
const STATE = createEntries(CRASH_STATE);
const STATE2 = createEntries({ windows: [{ tabs: [STATE] }] });
const STATE3 = createEntries(JSON.stringify(CRASH_STATE));
function createEntries(sessionData) {
return {
entries: [{ url: "about:sessionrestore", triggeringPrincipal_base64 }],
formdata: { id: { sessionData }, url: "about:sessionrestore" },
};
}
add_task(async function test_nested_about_sessionrestore() {
// Prepare a blank tab.
let tab = BrowserTestUtils.addTab(gBrowser, "about:blank");
let browser = tab.linkedBrowser;
await promiseBrowserLoaded(browser);
// test 1
await promiseTabState(tab, STATE);
await checkState("test1", tab);
// test 2
await promiseTabState(tab, STATE2);
await checkState("test2", tab);
// test 3
await promiseTabState(tab, STATE3);
await checkState("test3", tab);
// Cleanup.
gBrowser.removeTab(tab);
});
async function checkState(prefix, tab) {
// Flush and query tab state.
await TabStateFlusher.flush(tab.linkedBrowser);
let { formdata } = JSON.parse(ss.getTabState(tab));
ok(
formdata.id.sessionData,
prefix + ": we have form data for about:sessionrestore"
);
let sessionData_raw = JSON.stringify(formdata.id.sessionData);
ok(
!/\\/.test(sessionData_raw),
prefix + ": #sessionData contains no backslashes"
);
info(sessionData_raw);
let gotError = false;
try {
JSON.parse(formdata.id.sessionData);
} catch (e) {
info(prefix + ": got error: " + e);
gotError = true;
}
ok(gotError, prefix + ": attempting to JSON.parse form data threw error");
}