I think this paragraph sort-of fills it in: > "Consider a situation where I can view DNS traffic (e.g. company network), and I send a link to the company healt

I think this paragraph sort-of fills it in: > "Consider a situation where I can view DNS traffic (e.g. company network), and I send a link to the company health portal, with #:~:text=cancer," he wrote. "On certain page layouts, I might be able [to] tell if the employee has cancer by looking for lower-on-the-page resources being requested." The impression I got was that you'd need a combined hack with javascript reading the page position when you load the page.