This is very clever - and potentially a resource for attackers. You probably should be blocking this on corporate networks. Another example of tools which lower the technical bar, giving less sophisticated attackers access to easy to deploy and use tooling. https://www.gsocket.io/deploy/?utm_source=pocket_saves
Initial thought: "mother of god this is terrifyingly simple and effective"
Secondary thought: "I want this for some legitimate use cases, I think. I love this idea."