from ticket 59505
node-tar >= 7 returns a Minipass stream: it has `pipe()` but is not a `node:stream`
instance. xo-proxy serves this stream through Koa, which pipes only bodies passing
instanceof Stream` and JSON-serializes anything else — so a file restore through a
proxy answered a JSON dump of the tar object instead of the archive. Wrapping it in a
real node stream also propagates tar errors to the consumer and aborts the tar job
when the client disconnects.
a6970b0150