As far as I understand, if you supply a made up TxID to the
getrawtransaction RPC API, it should return an error code that suggests the record is not found (i.e. 404 HTTP STATUS CODE?). However, in bitcoin-core 0.12.1 and 0.13.1 it's returning 500-Internal Server Error, as if the node had some problem processing the request.
FYI, I have
txindex=1 enabled in this node, so it's not because of the lack of data. Should this be fixed upstream or is it already fixed? Or is there a better reason for why this is the case?