Properly namespacing output_id for render.download in order for it to

work in modules

shiny/render/_render.py

@@ -688,7 +688,7 @@ def url() -> str:
  from urllib.parse import quote
 
  session = require_active_session(None)
- return f"session/{quote(session.id)}/download/{quote(self.output_id)}?w="
+ return f"session/{quote(session.id)}/download/{quote(session.ns(self.output_id))}?w="
 
  # Unlike most value functions, this one's name is `url`. But we want to get the
  # name from the user-supplied function.
@@ -705,7 +705,7 @@ def url() -> str:
  # have been started.
  session = get_current_session()
  if session is not None and not session.is_stub_session():
- session._downloads[self.output_id] = DownloadInfo(
+ session._downloads[session.ns(self.output_id)] = DownloadInfo(
  filename=self.filename,
  content_type=self.media_type,
  handler=fn,