Interface ShellCapabilities

Static capability set sent to napplet iframes through the shell.ready / shell.init handshake. Optional runtime domain presence is injected before authored code, while mandatory NAP-SHELL caches this environment for local capability queries.

NAP-SHELL needs only a truthful set of bare domain names. The shim answers shell.supports(domain) locally from this snapshot after shell.init.

interface ShellCapabilities {
domains: readonly string[];
}