And technically if you hit someone in the head with a hammer than it's the hammer that's hitting the head, and not you. It's a meaningless distinction made in bad faith.
The law is clearly meant to protect an average citizen. It's unreasonable to expect them to know how the web and browsers work. When you instruct the browser to display something, you should take full legal responsibility for what you are instructing the browser to do, because from users point of view it's the website owner who is displaying all of that.