In the early Web days, there were some sites that would let you display an application locally (not just on a local network, like a lot of institutional X appli

In the early Web days, there were some sites that would let you display an application locally (not just on a local network, like a lot of institutional X applications, but across the internet) if you gave it the proper DISPLAY value (and did the right xhost command locally). We're getting closer to getting full-circle on this, but much better security this time around.