This could have been handled better: * Position and clip the alert box within bounds of the frame, so that it doesn't display anything that the frame couldn't

This could have been handled better: * Position and clip the alert box within bounds of the frame, so that it doesn't display anything that the frame couldn't do itself. * Don't make framed alerts steal focus, so that it also loses special behavior. * Ideally, provide some replacement like `await alert()` so that authors can migrate with minimal changes.