The node is now dispatching explore requests via the generalized dispatcher, with serialization tied to http header accept type and query string format, and with the witness option as applicable. Just need to hook up the queries for the remaining methods now. These are complete:
/v1/block/hash/[hash]
/v1/block/height/[height]
/v1/block/hash/[hash]/header
/v1/block/height/[height]/header
/v1/transaction/[hash]
with (optional):
?format=json|text|data&witness=true|false