[DisplayAction] Don't return redirect error codes (#1359)
[DisplayAction] Don't return redirect error codes (#1359)

This might lead to redirect loops.

See
https://github.com/RSS-Bridge/rss-bridge/pull/1071#issuecomment-515632848

Cherry-picked from eb21d6f.
sebsauvage/rss-bridge,kranack/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,kranack/rss-bridge,kranack/rss-bridge,Frenzie/rss-bridge,ORelio/rss-bridge,RSS-Bridge/rss-bridge,Riduidel/rss-bridge,Frenzie/rss-bridge,Riduidel/rss-bridge,ORelio/rss-bridge,RSS-Bridge/rss-bridge,ORelio/rss-bridge,Riduidel/rss-bridge