mrhid6
978b665aa6
Session.Close now closing its own accepted conn (from the prior fix wave) made net.ErrClosed on the guacd-side reader indistinguishable from a real remote failure, so a normal browser-tab close could race the handler's defer and intermittently log console.proxy_failed on a healthy session. Add a closing flag, set before Close's sync.Once body actually tears anything down, that setReason respects -- a deliberate local teardown can no longer produce or race in a failure reason, while Close's own explicit reason argument still wins normally.