Rule n° 238 - Access to the context menu is not blocked.

The context menu is the menu that appears "in context" on the web page when you right-click your mouse, or use certain keyboard shortcuts for your operating system. Depending on the browser and software, the options available differ, but are often very convenient. Some site creators have fun disabling the ability to display this pop-up menu. It's useless, it doesn't prevent much because all the menus remain accessible. Basically, don't do that. There's no point in degrading the experience of bona fide users by implementing techniques that don't even harm the few ill-intentioned users.