🏓 Window to Window tabs are processes; BroadcastChannel is their radio

Every open tab of a site is its own little process — and they can all talk. Click below to open a second window of this exact page, then serve the ball: it bounces out of one window and appears in the other. Arrange the windows side by side for maximum sport.

windows on this channel: 1

The ball will play here. When it exits stage right, it enters the other window stage left.