"Hypermedia as the engine of application state (HATEOAS). If that concept was better understood by more people we might finally make some progress on things other than how to make pretty URLs."

Web architects must understand that resources are just consistent mappings from an identifier to some set of views on server-side state. If one view doesn’t suit your needs, then feel free to create a different resource that provides a better view (for any definition of “better”). These views need not have anything to do with how the information is stored on the server, or even what kind of state it ultimately reflects. It just needs to be understandable (and actionable) by the recipient.

for tomcat

Localhost packets don't pass through the regular network stack, so they're invisible to an ethernet sniffer. The only recourse is a local HTTP proxy, such as Fiddler