fix(ext/websocket): drop connection when close frame not ack (#24301)

Fixes #24292

1 files changed, 12 insertions, 0 deletions

diff --git a/ext/websocket/01_websocket.js b/ext/websocket/01_websocket.js
index afe543da5..60580a56c 100644
--- a/ext/websocket/01_websocket.js
+++ b/ext/websocket/01_websocket.js
@@ -424,6 +424,18 @@ class WebSocket extends EventTarget {
     const rid = this[_rid];
     while (this[_readyState] !== CLOSED) {
       const kind = await op_ws_next_event(rid);
+      /* close the connection if read was cancelled, and we didn't get a close frame */
+      if (
+        (this[_readyState] == CLOSING) &&
+        kind <= 3 && this[_role] !== CLIENT
+      ) {
+        this[_readyState] = CLOSED;
+
+        const event = new CloseEvent("close");
+        this.dispatchEvent(event);
+        core.tryClose(rid);
+        break;
+      }
 
       switch (kind) {
         case 0: {