This section is not included in the draft policy. This section has been eliminated in the draft policy. Also many programs today display HTML but are not web browsers. What makes a web browser special is its communication with a web server using Hypertext Transfer Protocol. Image Map is a graphical navigational tool that allows parts of an image or graphic to function as hypertext links.
Internet is a global network of computers and networks.
They in fact download a page, a mailto link tells the browser to launch a mail program and open a mail document with a specified address. More important, what makes the web unique is hypertext.