Extensions run requests in what is effectively their own container for our...

Extensions run requests in what is effectively their own container for our purposes, and one that's not exactly easy to determine is in use. But when we don't recognize the context and cannot jump out of context into an I2P tab, we basically it's coming from inside an extension(Or firefox-private, but that's sort of a whole other can of worms I need to tackle soon). TL:DR if it has no context, then we'll need to decide in favor of proxying requests to .i2p urls via I2P HTTP Proxy for it. The effect is that we can set the RPC remote for say, a bittorrent client, to the .b32.i2p URL of our BiglyBT xmwebwebui remote, for instance.