2 files changed, 7 insertions, 6 deletions
diff --git a/ext/websocket/01_websocket.js b/ext/websocket/01_websocket.js
index 50e110444..635979174 100644
--- a/ext/websocket/01_websocket.js
+++ b/ext/websocket/01_websocket.js
@@ -322,7 +322,12 @@ class WebSocket extends EventTarget {
       throw new DOMException("readyState not OPEN", "InvalidStateError");
     }
 
-    if (ObjectPrototypeIsPrototypeOf(BlobPrototype, data)) {
+    if (ArrayBufferIsView(data)) {
+      op_ws_send_binary(this[_rid], data);
+    } else if (ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, data)) {
+      // deno-lint-ignore prefer-primordials
+      op_ws_send_binary(this[_rid], new Uint8Array(data));
+    } else if (ObjectPrototypeIsPrototypeOf(BlobPrototype, data)) {
       PromisePrototypeThen(
         // deno-lint-ignore prefer-primordials
         data.slice().arrayBuffer(),
@@ -332,10 +337,6 @@ class WebSocket extends EventTarget {
             new DataView(ab),
           ),
       );
-    } else if (ArrayBufferIsView(data)) {
-      op_ws_send_binary(this[_rid], data);
-    } else if (ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, data)) {
-      op_ws_send_binary(this[_rid], data);
     } else {
       const string = String(data);
       op_ws_send_text(
diff --git a/ext/websocket/lib.rs b/ext/websocket/lib.rs
index a8d18b4ad..5ac1f0197 100644
--- a/ext/websocket/lib.rs
+++ b/ext/websocket/lib.rs
@@ -407,7 +407,7 @@ pub fn ws_create_server_stream(
 }
 
 #[op(fast)]
-pub fn op_ws_send_binary(state: &mut OpState, rid: ResourceId, data: JsBuffer) {
+pub fn op_ws_send_binary(state: &mut OpState, rid: ResourceId, data: &[u8]) {
   let resource = state.resource_table.get::<ServerWebSocket>(rid).unwrap();
   let data = data.to_vec();
   let len = data.len();