Require Node.js v12 or higher

Also stop testing Node.js v15 (since it will EOL soon) and start testing Node.js v16.

.github/ISSUE_TEMPLATE.md

@@ -1,6 +1,6 @@
 ### Basic info:
 
-- **Node.js version:** <!-- only v10 and above are supported -->
+- **Node.js version:** <!-- only v12 and above are supported -->
 - **jsdom version:** <!-- only v16 and above are supported -->
 
 ### Minimal reproduction case

.github/workflows/jsdom-ci.yml

@@ -22,9 +22,7 @@ jobs:
       - name: Run linter
         uses: actions/setup-node@v2
         with:
-          node-version: '15'
-      - name: Setup HOSTS file for Web Platform Test server
-        run: ./test/web-platform-tests/tests/wpt make-hosts-file | sudo tee -a /etc/hosts
+          node-version: '16'
       - name: Install dependencies
         run: yarn --frozen-lockfile
       - name: Run syntax rules check with ESLint
@@ -37,10 +35,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           submodules: 'recursive'
-      - name: Run Canvas tests with Node 10
+      - name: Run Canvas tests with Node 16
         uses: actions/setup-node@v2
         with:
-          node-version: '10'
+          node-version: '16'
       - name: Install required image manipulation packages with APT
         run: sudo apt-get install build-essential libcairo2-dev libpango1.0-dev libjpeg-dev libgif-dev librsvg2-dev
       - name: Setup HOSTS file for Web Platform Test server
@@ -60,7 +58,7 @@ jobs:
       - name: Run web browser tests
         uses: actions/setup-node@v2
         with:
-          node-version: '15'
+          node-version: '16'
       - name: Setup HOSTS file for Web Platform Test server
         run: ./test/web-platform-tests/tests/wpt make-hosts-file | sudo tee -a /etc/hosts
       - name: Install dependencies
@@ -73,10 +71,9 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 10
           - 12
           - 14
-          - 15
+          - 16
         architecture:
           - x64
     steps:

README.md

@@ -5,7 +5,7 @@
 
 jsdom is a pure-JavaScript implementation of many web standards, notably the WHATWG [DOM](https://dom.spec.whatwg.org/) and [HTML](https://html.spec.whatwg.org/multipage/) Standards, for use with Node.js. In general, the goal of the project is to emulate enough of a subset of a web browser to be useful for testing and scraping real-world web applications.
 
-The latest versions of jsdom require Node.js v10 or newer. (Versions of jsdom below v16 still work with previous Node.js versions, but are unsupported.)
+The latest versions of jsdom require Node.js v12 or newer. (Versions of jsdom below v17 still work with previous Node.js versions, but are unsupported.)
 
 ## Basic usage
 

lib/jsdom/browser/Window.js

@@ -97,9 +97,6 @@ exports.createWindow = function (options) {
 
 const jsGlobalEntriesToInstall = Object.entries(jsGlobals).filter(([name]) => name in global);
 
-// TODO remove when we drop Node v10 support.
-const anyNodeVersionQueueMicrotask = typeof queueMicrotask === "function" ? queueMicrotask : process.nextTick;
-
 // https://html.spec.whatwg.org/#the-window-object
 function setupWindow(windowInstance, { runScripts }) {
   if (runScripts === "outside-only" || runScripts === "dangerously") {
@@ -545,7 +542,7 @@ function Window(options) {
   this.queueMicrotask = function (callback) {
     callback = webIDLConversions.Function(callback);
 
-    anyNodeVersionQueueMicrotask(() => {
+    queueMicrotask(() => {
       try {
         callback();
       } catch (e) {

test/api/options-run-scripts.js

@@ -6,10 +6,6 @@ const { delay } = require("../util.js");
 const { JSDOM, VirtualConsole } = require("../..");
 const jsGlobals = Object.keys(require("../../lib/jsdom/browser/js-globals.json"));
 
-// Node 10 has a bug with the vm module that causes some global-related tests to fail.
-const hasNode10 = process.versions.node && Number(process.versions.node.split(".")[0]) === 10;
-
-
 describe("API: runScripts constructor option", () => {
   describe("<script>s and eval()", () => {
     it("should not execute any scripts by default", () => {
@@ -124,8 +120,7 @@ describe("API: runScripts constructor option", () => {
     });
   });
 
-  const jsSpecGlobalsDescribe = hasNode10 ? describe.skip : describe;
-  jsSpecGlobalsDescribe("JS spec globals", () => {
+  describe("JS spec globals", () => {
     it("should include aliased globals by default", () => {
       // Sanity check that our global-generation process hasn't broken.
       assert.include(jsGlobals, "TypeError");

test/web-platform-tests/to-run.yaml

@@ -264,7 +264,6 @@ header-values-normalize.any.html: [fail, fetch is not defined]
 header-values.any.html: [fail, fetch is not defined]
 headers-basic.any.html: [fail, iterator prototype is wrong]
 headers-no-cors.any.html: [fail, Request is not defined]
-headers-record.any.html: [needs-node12, V8 bug fixed in Node 12 onward]
 
 ---
 
@@ -470,12 +469,6 @@ window-open-invalid-url.html: [fail, Unknown]
 window-open-noopener.html**: [fail-slow, Unknown]
 window-open-noreferrer.html: [fail, Depends on BroadcastChannel]
 window-properties.https.html:
-  "Value Property: NaN": [needs-node12, Unknown]
-  "Value Property: Infinity": [needs-node12, Unknown]
-  "Value Property: undefined": [needs-node12, Unknown]
-  "EventTarget method: addEventListener": [needs-node12, Unknown]
-  "EventTarget method: removeEventListener": [needs-node12, Unknown]
-  "EventTarget method: dispatchEvent": [needs-node12, Unknown]
   "Window method: createImageBitmap": [fail, Not implemented]
   "Window method: matchMedia": [fail, Not implemented]
   "Window readonly attribute: applicationCache": [fail, Not implemented]
@@ -943,8 +936,6 @@ css-module/**: [fail-slow, CSS modules and Worker not implemented]
 data-url.html: [timeout, Unknown]
 emptyish-script-elements.html: [fail, Unknown]
 evaluation-order-**worker.html: [fail, workers not implemented]
-evaluation-order-1-nothrow.html: [needs-node12, Test uses globalThis]
-evaluation-order-1.html: [needs-node12, Test uses globalThis]
 execution-timing/005.html: [fail, Unknown]
 execution-timing/006.html: [fail, Unknown]
 execution-timing/009.html: [fail, Unknown]
@@ -1135,7 +1126,6 @@ DIR: html/webappapis/dynamic-markup-insertion/document-writeln
 
 DIR: html/webappapis/microtask-queuing
 
-queue-microtask.any.html: [needs-node12, Node v10 doesn't have queueMicrotask so we use the nextTick queue there which has the wrong ordering semantics with regard to promises]
 queue-microtask.window.html: [fail-slow, Unknown interaction with Mutation Observers]
 
 ---
@@ -1269,11 +1259,9 @@ unload-a-document/*: [timeout, Requires window.open]
 
 DIR: webstorage
 
-event_no_duplicates.html: [needs-node11, Earlier Node.js timers did not match browser behaviour, https://github.com/nodejs/node/pull/22842]
 storage_local_window_open.window.html: [timeout, Depends on window.open()]
 storage_session_window_noopener.window.html: [fail, Depends on BroadcastChannel]
 storage_session_window_open.window.html: [timeout, Depends on window.open()]
-storage_string_conversion.window.html: [needs-node10, function.toString() does not use correct formatting in earlier versions, https://github.com/nodejs/node/issues/20459]
 symbol-props.window.html: [fail, Unknown]
 
 ---

test/web-platform-tests/utils.js

@@ -1,10 +1,6 @@
 "use strict";
 const { Canvas } = require("../../lib/jsdom/utils.js");
 
-const nodeMajor = Number(process.versions.node.split(".", 1)[0]);
-const hasNode10 = nodeMajor >= 10;
-const hasNode11 = nodeMajor >= 11;
-const hasNode12 = nodeMajor >= 12;
 const hasCanvas = Boolean(Canvas);
 
 exports.resolveReason = reason => {
@@ -14,10 +10,7 @@ exports.resolveReason = reason => {
   }
 
   if (reason === "fail" ||
-    (reason === "fail-with-canvas" && hasCanvas) ||
-    (reason === "needs-node10" && !hasNode10) ||
-    (reason === "needs-node11" && !hasNode11) ||
-    (reason === "needs-node12" && !hasNode12)) {
+    (reason === "fail-with-canvas" && hasCanvas)) {
     return "expect-fail";
   }