I'd be interested in exploring the heuristics and techniques involved in finding that out. e.g. this identifies the popup wrappers on nautilus and yesmagazine:

I'd be interested in exploring the heuristics and techniques involved in finding that out. e.g. this identifies the popup wrappers on nautilus and yesmagazine: [].filter.call(document.body.childNodes, node => node.nodeType === 1 && getComputedStyle(node).position === 'fixed' )