diff --git a/prez/renderers/renderer.py b/prez/renderers/renderer.py
index 5a4faf00..e070b283 100644
--- a/prez/renderers/renderer.py
+++ b/prez/renderers/renderer.py
@@ -7,20 +7,18 @@
 from fastapi import status
 from fastapi.exceptions import HTTPException
 from fastapi.responses import StreamingResponse
-from rdflib import Graph, URIRef, Namespace, RDF
+from rdflib import RDF, Graph, Namespace, URIRef
 from starlette.requests import Request
 from starlette.responses import Response
 
 from prez.models.profiles_and_mediatypes import ProfilesMediatypesInfo
 from prez.models.profiles_item import ProfileItem
 from prez.renderers.csv_renderer import render_csv_dropdown
-from prez.renderers.json_renderer import render_json_dropdown, NotFoundError
+from prez.renderers.json_renderer import NotFoundError, render_json_dropdown
 from prez.services.curie_functions import get_curie_id_for_uri
 from prez.sparql.methods import Repo
-from prez.sparql.objects_listings import (
-    generate_item_construct,
-    get_annotation_properties,
-)
+from prez.sparql.objects_listings import (generate_item_construct,
+                                          get_annotation_properties)
 
 log = logging.getLogger(__name__)
 
@@ -33,7 +31,17 @@ async def return_from_graph(
     selected_class: URIRef,
     repo: Repo,
 ):
-    profile_headers["Content-Disposition"] = "inline"
+    iri = graph.value(None, RDF.type, selected_class)
+    if iri:
+        filename = get_curie_id_for_uri(URIRef(str(iri)))
+    elif selected_class:
+        filename = selected_class.split("#")[-1].split("/")[-1]
+    else:
+        filename = None
+    if filename:
+        profile_headers["Content-Disposition"] = f"inline; filename={filename}"
+    else:
+        profile_headers["Content-Disposition"] = "inline"
 
     if str(mediatype) in RDF_MEDIATYPES:
         return await return_rdf(graph, mediatype, profile_headers)
@@ -48,21 +56,13 @@ async def return_from_graph(
             jsonld_data = await render_json_dropdown(graph, profile, selected_class)
 
             if str(mediatype) == "text/csv":
-                iri = graph.value(None, RDF.type, selected_class)
-                if iri:
-                    filename = get_curie_id_for_uri(URIRef(str(iri)))
-                else:
-                    filename = selected_class.split("#")[-1].split("/")[-1]
                 stream = render_csv_dropdown(jsonld_data["@graph"])
-                response = StreamingResponse(stream, media_type=mediatype)
-                response.headers[
-                    "Content-Disposition"
-                ] = f"attachment;filename={filename}.csv"
+                response = StreamingResponse(stream, media_type=mediatype, headers=profile_headers)
                 return response
 
             # application/json
             stream = io.StringIO(json.dumps(jsonld_data))
-            return StreamingResponse(stream, media_type=mediatype)
+            return StreamingResponse(stream, media_type=mediatype, headers=profile_headers)
 
         except NotFoundError as err:
             raise HTTPException(status.HTTP_404_NOT_FOUND, str(err))
@@ -91,7 +91,6 @@ async def return_rdf(graph, mediatype, profile_headers):
             format=RDF_SERIALIZER_TYPES_MAP[str(mediatype)], encoding="utf-8"
         )
     )
-    profile_headers["Content-Disposition"] = "inline"
     return StreamingResponse(content=obj, media_type=mediatype, headers=profile_headers)
 
 
diff --git a/prez/routers/vocprez.py b/prez/routers/vocprez.py
index 61d56278..4d97df4b 100644
--- a/prez/routers/vocprez.py
+++ b/prez/routers/vocprez.py
@@ -1,28 +1,23 @@
 import logging
 
-from fastapi import APIRouter, Request
-from fastapi import Depends
+from fastapi import APIRouter, Depends, Request
 from fastapi.responses import RedirectResponse
-from rdflib import URIRef, SKOS
+from rdflib import SKOS, URIRef
 from starlette.responses import PlainTextResponse
 
 from prez.bnode import get_bnode_depth
 from prez.dependencies import get_repo, get_system_repo
 from prez.models.profiles_and_mediatypes import ProfilesMediatypesInfo
-from prez.queries.vocprez import (
-    get_concept_scheme_query,
-    get_concept_scheme_top_concepts_query,
-    get_concept_narrowers_query,
-)
-from prez.renderers.renderer import (
-    return_from_graph,
-)
+from prez.queries.vocprez import (get_concept_narrowers_query,
+                                  get_concept_scheme_query,
+                                  get_concept_scheme_top_concepts_query)
+from prez.renderers.renderer import return_from_graph
 from prez.response import StreamingTurtleAnnotatedResponse
 from prez.routers.identifier import get_iri_route
-from prez.services.objects import object_function
-from prez.services.listings import listing_function
-from prez.services.link_generation import _add_prez_links
 from prez.services.curie_functions import get_curie_id_for_uri
+from prez.services.link_generation import _add_prez_links
+from prez.services.listings import listing_function
+from prez.services.objects import object_function
 from prez.sparql.methods import Repo
 from prez.sparql.resource import get_resource