A user on Reddit suggested the image url hack was a way to bypass mixed content blocking from the zoom https site to the local http server: https://www.reddit.c

A user on Reddit suggested the image url hack was a way to bypass mixed content blocking from the zoom https site to the local http server: https://www.reddit.com/r/programming/comments/cavblo/zoom_zero_day_4_million_webcams_maybe_an_rce_just/etdw0qn/ https://www.reddit.com/r/programming/comments/cavblo/zoom_ze... > One potential hiccup I encountered was that Firefox blocked my XHR request due to a policy against "mixed active content". This was because my origin site was accessed through an HTTPS connection and the localhost server was only HTTP. That's one potential reason Zoom might have opted to use their <img> garbage; since <img> elements are passive not active content, they could avoid using HTTPS on the localhost webserver. That's not a good excuse, but clearly they weren't interested in finding a good solution -- whatever the problem that prompted the <img> hack was.