ELECTRON-430: Enable context isolation

1. Enables context isolation when creating any browser window instance.

js/aboutApp/index.js

@@ -20,6 +20,7 @@ let windowConfig = {
     titleBarStyle: true,
     resizable: false,
     webPreferences: {
+        contextIsolation: true,
         preload: path.join(__dirname, 'renderer.js'),
         sandbox: true,
         nodeIntegration: false

js/basicAuth/index.js

@@ -23,6 +23,7 @@ let windowConfig = {
     titleBarStyle: true,
     resizable: false,
     webPreferences: {
+        contextIsolation: true,
         preload: path.join(__dirname, 'renderer.js'),
         sandbox: true,
         nodeIntegration: false

js/desktopCapturer/index.js

@@ -24,6 +24,7 @@ let windowConfig = {
     resizable: false,
     alwaysOnTop: true,
     webPreferences: {
+        contextIsolation: true,
         preload: path.join(__dirname, 'renderer.js'),
         sandbox: true,
         nodeIntegration: false

js/notify/electron-notify.js

@@ -136,6 +136,7 @@ let config = {
         transparent: true,
         acceptFirstMouse: true,
         webPreferences: {
+            contextIsolation: true,
             preload: path.join(__dirname, 'electron-notify-preload.js'),
             sandbox: sandboxed,
             nodeIntegration: isNodeEnv

js/notify/settings/configure-notification-position.js

@@ -27,6 +27,7 @@ let windowConfig = {
     autoHideMenuBar: true,
     resizable: false,
     webPreferences: {
+        contextIsolation: true,
         preload: path.join(__dirname, 'configure-notification-position-preload.js'),
         sandbox: sandboxed,
         nodeIntegration: false

js/windowMgr.js

@@ -130,6 +130,7 @@ function doCreateMainWindow(initialUrl, initialBounds, isCustomTitleBar) {
         alwaysOnTop: false,
         webPreferences: {
             sandbox: sandboxed,
+            contextIsolation: true,
             nodeIntegration: isNodeEnv,
             preload: preloadMainScript,
             nativeWindowOpen: true