This section comprehends the next files in 4-frames-and-windos
├── 01-popup-windows
│ └── article.md
├── 03-cross-window-communication
│ ├── article.md
│ ├── postmessage.view
│ └── sandbox.view
├── 06-clickjacking
│ ├── article.md
│ ├── clickjacking-visible.view
│ ├── clickjacking.view
│ ├── protector.view
│ └── top-location.view
└── index.md