fix: cache policies

Author: martastain

ayon_server/api/files.py

@@ -128,13 +128,21 @@ async def handle_download(
     )
 
 
-def image_response_from_bytes(image_bytes: bytes) -> Response:
+def image_response_from_bytes(
+    image_bytes: bytes,
+    *,
+    headers: dict[str, str] | None = None,
+) -> Response:
     media_type = guess_mime_type(image_bytes)
     if media_type is None:
         raise NotFoundException("Invalid image format")
 
+    _headers = {"cache-control": "max-age=3600"}
+    if headers:
+        _headers.update(headers)
+
     return Response(
         content=image_bytes,
         media_type=media_type,
-        headers={"cache-control": "max-age=3600"},
+        headers=_headers,
     )

ayon_server/helpers/preview.py

@@ -180,7 +180,7 @@ async def get_file_preview(
     if pvw_bytes == b"":
         raise NotFoundException("File preview not available")
 
-    return image_response_from_bytes(pvw_bytes)
+    return image_response_from_bytes(pvw_bytes, headers={"X-File-ID": file_id})
 
 
 async def uncache_file_preview(project_name: str, file_id: str) -> None: