API: fix special casing for dataprotal Headers
API: fix special casing for dataprotal Headers

NSLS-II/metadatastore,hhslepicka/metadatastore,ericdill/databroker,ericdill/databroker,tacaswell/metadataStore,arkilic/metadatastore,NSLS-II/metadatastore,arkilic/metadatastore,tacaswell/metadataStore,hhslepicka/metadatastore