Because modern web sites circumvent the HTML engine and request JSON from the server which they then render via JavaScript. Other bugs with the modern web auth

Because modern web sites circumvent the HTML engine and request JSON from the server which they then render via JavaScript. Other bugs with the modern web authoring style: 1. broken back/forward functionality 2. broken scroll bars 3. broken accessibility 4. broken memory of where the page was at when closed, leading to a fresh load of the page on Re-Open-Closed-Tab 5. infinite scroll being highly unnatural