Resume snaps that failed to download

Since some snaps are very big on size (for example 0ad) shouldn’t there be a way when download fails to resume from where it failed and not start over?

This is done automatically. There’s no need to ask for it or use any flags. If the continuation fails for whatever reason, it will be aborted and a full download attempted. Note that we also have deltas across independent versions, so even when you are downloading a new version of 0ad for instance, only a fraction of the actual data will need to be fetched from the server.

I know this is old but I noticed something today. I was refreshing firefox and it failed at 90%, so I re-refreshed it again and the download started all-over again, no resume