diff --git a/lib/worker/init.ts b/lib/worker/init.ts
index adda86471145c..6a5b11495a8f4 100644
--- a/lib/worker/init.ts
+++ b/lib/worker/init.ts
@@ -12,6 +12,9 @@ require('../common/reset-search-paths');
// Import common settings.
require('@electron/internal/common/init');
+// Process command line arguments.
+const { hasSwitch, getSwitchValue } = process._linkedBinding('electron_common_command_line');
+
// Export node bindings to global.
const { makeRequireFunction } = __non_webpack_require__('internal/modules/cjs/helpers') // eslint-disable-line
global.module = new Module('electron/js2c/worker_init');
@@ -32,4 +35,10 @@ if (self.location.protocol === 'file:') {
// For backwards compatibility we fake these two paths here
global.__filename = path.join(process.resourcesPath, 'electron.asar', 'worker', 'init.js');
global.__dirname = path.join(process.resourcesPath, 'electron.asar', 'worker');
+
+ const appPath = hasSwitch('app-path') ? getSwitchValue('app-path') : null;
+ if (appPath) {
+ // Search for module under the app directory.
+ global.module.paths = Module._nodeModulePaths(appPath);
+ }
}
diff --git a/spec-main/chromium-spec.ts b/spec-main/chromium-spec.ts
index 34bf9aaac342b..b9dd5c35c62fe 100644
--- a/spec-main/chromium-spec.ts
+++ b/spec-main/chromium-spec.ts
@@ -682,6 +682,26 @@ describe('chromium features', () => {
});
});
+ describe('web workers', () => {
+ let appProcess: ChildProcess.ChildProcessWithoutNullStreams | undefined;
+
+ afterEach(() => {
+ if (appProcess && !appProcess.killed) {
+ appProcess.kill();
+ appProcess = undefined;
+ }
+ });
+
+ it('Worker with nodeIntegrationInWorker has access to self.module.paths', async () => {
+ const appPath = path.join(__dirname, 'fixtures', 'apps', 'self-module-paths');
+
+ appProcess = ChildProcess.spawn(process.execPath, [appPath]);
+
+ const [code] = await emittedOnce(appProcess, 'exit');
+ expect(code).to.equal(0);
+ });
+ });
+
describe('form submit', () => {
let server: http.Server;
let serverUrl: string;
diff --git a/spec-main/fixtures/apps/self-module-paths/index.html b/spec-main/fixtures/apps/self-module-paths/index.html
new file mode 100644
index 0000000000000..d1c74e8175047
--- /dev/null
+++ b/spec-main/fixtures/apps/self-module-paths/index.html
@@ -0,0 +1,7 @@
+
+
+
+ Hello World!
+
+
+
diff --git a/spec-main/fixtures/apps/self-module-paths/main.js b/spec-main/fixtures/apps/self-module-paths/main.js
new file mode 100644
index 0000000000000..3baae49b7a79e
--- /dev/null
+++ b/spec-main/fixtures/apps/self-module-paths/main.js
@@ -0,0 +1,34 @@
+// Modules to control application life and create native browser window
+const { app, BrowserWindow, ipcMain } = require('electron');
+const path = require('path');
+
+function createWindow () {
+ const mainWindow = new BrowserWindow({
+ width: 800,
+ height: 600,
+ show: false,
+ webPreferences: {
+ nodeIntegration: true,
+ nodeIntegrationInWorker: true,
+ contextIsolation: false
+ }
+ });
+
+ mainWindow.loadFile('index.html');
+}
+
+ipcMain.handle('module-paths', (e, success) => {
+ process.exit(success ? 0 : 1);
+});
+
+app.whenReady().then(() => {
+ createWindow();
+
+ app.on('activate', function () {
+ if (BrowserWindow.getAllWindows().length === 0) createWindow();
+ });
+});
+
+app.on('window-all-closed', function () {
+ if (process.platform !== 'darwin') app.quit();
+});
diff --git a/spec-main/fixtures/apps/self-module-paths/package.json b/spec-main/fixtures/apps/self-module-paths/package.json
new file mode 100644
index 0000000000000..dd5fbf228960e
--- /dev/null
+++ b/spec-main/fixtures/apps/self-module-paths/package.json
@@ -0,0 +1,4 @@
+{
+ "name": "electron-test-self-module-paths",
+ "main": "main.js"
+}
diff --git a/spec-main/fixtures/apps/self-module-paths/renderer.js b/spec-main/fixtures/apps/self-module-paths/renderer.js
new file mode 100644
index 0000000000000..5148845343972
--- /dev/null
+++ b/spec-main/fixtures/apps/self-module-paths/renderer.js
@@ -0,0 +1,12 @@
+const { ipcRenderer } = require('electron');
+
+const worker = new Worker('worker.js');
+
+worker.onmessage = (event) => {
+ const workerPaths = event.data.sort().toString();
+ const rendererPaths = self.module.paths.sort().toString();
+ const validModulePaths = workerPaths === rendererPaths && workerPaths !== 0;
+
+ ipcRenderer.invoke('module-paths', validModulePaths);
+ worker.terminate();
+};
diff --git a/spec-main/fixtures/apps/self-module-paths/worker.js b/spec-main/fixtures/apps/self-module-paths/worker.js
new file mode 100644
index 0000000000000..2f1ecffdbcfea
--- /dev/null
+++ b/spec-main/fixtures/apps/self-module-paths/worker.js
@@ -0,0 +1 @@
+self.postMessage(self.module.paths);