Merge branch 'fix/review-2138' into fix/community-integration

# Conflicts:
#	docs/dubbing/translation-engines.md

backend/api/routers/dub_core.py

@@ -1918,7 +1918,7 @@ async def dub_transcribe_stream(
                     "heuristic",
                 )
 
-        fut_diar = loop.run_in_executor(_gpu_pool, _diarize)
+        fut_diar = loop.run_in_executor(_gpu_pool, lambda: _asr_work.run(_diarize))
         async for _ping in _ping_while(fut_diar):
             yield _ping
         final_segs, diar_warning, labels_source = fut_diar.result()

backend/api/routers/dub_export.py

@@ -291,7 +291,10 @@ async def stream_task(task_id: str, after_seq: int = 0):
         finally:
             await task_manager.remove_listener(task_id, q)
 
-    return StreamingResponse(_reader(), media_type="text/event-stream")
+    return StreamingResponse(
+        _reader(), media_type="text/event-stream",
+        headers={"Cache-Control": "no-cache, no-transform", "X-Accel-Buffering": "no"},
+    )
 
 
 @router.get("/jobs")