Prevent AoT and SS-tracker windows from being captured

In electron utils 2.0.15 we mark them as protected content, but on macOS
WebRTC uses a low level API which sidesteps that. An extra command line
argument is passed to fix that.

See: electron/electron#19880

main.js

@@ -29,6 +29,10 @@ const showDevTools = Boolean(process.env.SHOW_DEV_TOOLS) || (process.argv.indexO
 // We need this because of https://github.com/electron/electron/issues/18214
 app.commandLine.appendSwitch('disable-site-isolation-trials');
 
+// This allows BrowserWindow.setContentProtection(true) to work on macOS.
+// https://github.com/electron/electron/issues/19880
+app.commandLine.appendSwitch('disable-features', 'IOSurfaceCapturer');
+
 // Needed until robot.js is fixed: https://github.com/octalmage/robotjs/issues/580
 app.allowRendererProcessReuse = false;
 

package.json

@@ -116,7 +116,7 @@
     "electron-window-state": "5.0.3",
     "history": "4.10.1",
     "i18next": "19.4.5",
-    "jitsi-meet-electron-utils": "github:jitsi/jitsi-meet-electron-utils#v2.0.14",
+    "jitsi-meet-electron-utils": "github:jitsi/jitsi-meet-electron-utils#v2.0.15",
     "moment": "2.23.0",
     "mousetrap": "1.6.2",
     "react": "16.8.0",