# must fail: fetch_O10L1_discovered
# a layer is dispatched under SPEC §4 (session::advance_head)
diff --git a/wai/wai-rs/src/http_binding/session.rs b/wai/wai-rs/src/http_binding/session.rs
index 4730c192..44fa50f2 100644
--- a/wai/wai-rs/src/http_binding/session.rs
+++ b/wai/wai-rs/src/http_binding/session.rs
@@ -575,7 +575,7 @@ impl FetchSession {
         }
         self.head = Some(head.clone());
         match head.version {
-            Version::Wai1 if head.is_layer() => {
+            Version::Wai1 if false && head.is_layer() => {
                 // A layer goes to staged delivery, never to SPEC §4 (§10.4): the rest of
                 // it at refinement class, then the whole envelope against the cid.
                 self.to_rest(&head, WhyWhole::Layer, Class::Refinement);