Using Desktop as a Chrome Application
A common issue when using a desktop application within a browser tab is that certain shortcut keys (e.g. ctr+w, ctr+F4) get captured by the browser itself.
The simple solution is to create an application shortcut using Chrome (and Chromium) browsers.
1. More Tools -> Create shortcut on your computer desktop
2. Select "Open as window" when creating shortcut
3. Launch your application by double-clicking the shortcut on your Desktop
4. Use your application and enjoy having your keyboard shortcuts work as intended