I was experiencing delays in document load earlier and the underlying issue was DNS resolution between containers… for some reason (likely firewall or routing) containers didn’t like a pihole DNS server running on the same Docker host which resulted in DNS timeouts… my dirty workaround was to add public DNS records to the reverse proxy container serving both Nextcloud and Collabora… see Probably DNS help with NC Docker + Collabora + Wireguard tunnel. After adding DNS alias documents load much faster (first time it still takes maybe 2-3 sec to “warm up” the CODE but subsequent loads are 1-2 seconds)
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