v0.27.0

src/vhost/validation.rs

@@ -93,7 +93,7 @@ impl Vhost {
             "vhost allows at most 32 backend members"
         );
         ensure!(
-            !needs_proxy || !self.backends.is_empty(),
+            !needs_proxy || !self.backends.is_empty() || self.transient_unavailable,
             "vhost requires at least one backend member for Reverse Proxy sources"
         );
         let mut members = std::collections::HashSet::new();