The 0.0.0.0 kerfuffle

In the beginning, the web platform allowed websites to navigate to, submit forms to, and load resources, such as images or scripts, from any other website. For example, in the original design of the web, website1.test could load and display an image from website2.test. The image load could even be authenticated via, for example, cookies. website1.test would not, however, be able to directly read…