launch.json

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Debug",
      "type": "chrome",
      "request": "launch",
      "port": 9222,
      "sourceMaps": true,
      "internalConsoleOptions": "openOnSessionStart",
      "console": "integratedTerminal",
      "outFiles": [
        "./www/dist/**/*.js"
      ],
      "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/electron",
      "windows": {
        "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/electron.cmd"
      },
      "runtimeArgs": [
        "${workspaceRoot}/www/",
        "--dev",
        "--remote-debugging-port=9222"
      ]
    }
  ]
}