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Test Info:
- Manifest: dom/webserial/tests/browser/browser.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
const TEST_URL = BASE + "serial_bfcache_page.html";
const TEST_URL2 = BASE + "blank.html";
add_setup(async function () {
await SpecialPowers.pushPrefEnv({
set: [["dom.webserial.gated", false]],
});
registerCleanupFunction(() => {
while (gBrowser.tabs.length > 1) {
BrowserTestUtils.removeTab(gBrowser.selectedTab);
}
});
});
add_task(async function test_serial_disallows_bfcache() {
let tab = await BrowserTestUtils.openNewForegroundTab(
gBrowser,
TEST_URL,
true
);
let browser = tab.linkedBrowser;
// Request a serial port with autoselect (creates a SerialPort object,
// which should call DisallowBFCaching in its constructor).
await SpecialPowers.spawn(browser, [], async () => {
content.navigator.serial.autoselectPorts = true;
SpecialPowers.wrap(content.document).notifyUserGestureActivation();
let port = await content.navigator.serial.requestPort();
content._serialPort = port;
});
// Navigate to a different page.
BrowserTestUtils.startLoadingURIString(browser, TEST_URL2);
await BrowserTestUtils.browserLoaded(browser, false);
// Navigate back.
browser.goBack();
await BrowserTestUtils.browserLoaded(browser, false);
let persisted = await SpecialPowers.spawn(browser, [], async () => {
return content.document.documentElement.getAttribute("persisted");
});
is(
persisted,
"false",
"Page with serial port should not be restored from bfcache"
);
});