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Test Info: Warnings

  • This test gets skipped with pattern: headless
<title>Test for Clipboard Events</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<p id="display"></p>
"use strict";
// The clipboard event tests require `GlobalEventHandlers.onbeforeinput`
// attribute which is available only when `beforeinput` event is enabled.
// For ensuring it's available with any element in the document, we need
// to enable it in this window and then, create elements in the new
// document in a child window.
SimpleTest.waitForFocus(async () => {
await SpecialPowers.pushPrefEnv({
set: [
// NOTE: The tests operate under the assumption that the protected mode of
// DataTransfer is enabled.
["", true],
let childWindow ="window_clipboard_events.html", "_blank", "width=500,height=800");
ok(childWindow, "A child window should've been opened");
childWindow.onclose = () => {