1 files changed, 27 insertions, 4 deletions
diff --git a/ext/web/13_message_port.js b/ext/web/13_message_port.js
index 4b0404ab6..34f86f80c 100644
--- a/ext/web/13_message_port.js
+++ b/ext/web/13_message_port.js
@@ -9,6 +9,7 @@
 const core = globalThis.Deno.core;
 const { InterruptedPrototype, ops } = core;
 import * as webidl from "ext:deno_webidl/00_webidl.js";
+import { createFilteredInspectProxy } from "ext:deno_console/01_console.js";
 import {
   defineEventHandler,
   EventTarget,
@@ -57,10 +58,18 @@ class MessageChannel {
     return this.#port2;
   }
 
-  [SymbolFor("Deno.inspect")](inspect) {
-    return `MessageChannel ${
-      inspect({ port1: this.port1, port2: this.port2 })
-    }`;
+  [SymbolFor("Deno.privateCustomInspect")](inspect, inspectOptions) {
+    return inspect(
+      createFilteredInspectProxy({
+        object: this,
+        evaluate: ObjectPrototypeIsPrototypeOf(MessageChannelPrototype, this),
+        keys: [
+          "port1",
+          "port2",
+        ],
+      }),
+      inspectOptions,
+    );
   }
 }
 
@@ -181,6 +190,20 @@ class MessagePort extends EventTarget {
       this[_id] = null;
     }
   }
+
+  [SymbolFor("Deno.privateCustomInspect")](inspect, inspectOptions) {
+    return inspect(
+      createFilteredInspectProxy({
+        object: this,
+        evaluate: ObjectPrototypeIsPrototypeOf(MessagePortPrototype, this),
+        keys: [
+          "onmessage",
+          "onmessageerror",
+        ],
+      }),
+      inspectOptions,
+    );
+  }
 }
 
 defineEventHandler(MessagePort.prototype, "message", function (self) {