What if Infinite Scrolling were utilized inside of a fixed or static positioned element? I imagine a webpage with a header and a footer, and the body element is

What if Infinite Scrolling were utilized inside of a fixed or static positioned element? I imagine a webpage with a header and a footer, and the body element is of a fixed height and implements some type of Infinite Scrolling? Have you seen this approach used, is it a reasonable compromise, what problems remain? Is there a standard approach to release memory from items at the beginning of the scroll when they're far off screen?