From ca06abb4cc3399ea070c122be329a22f1c3b6800 Mon Sep 17 00:00:00 2001
From: Madison Rickert <3495636+madisonrickert@users.noreply.github.com>
Date: Fri, 15 May 2026 03:03:58 -0700
Subject: [PATCH] =?UTF-8?q?=F0=9F=A4=96=20Merge=20PR=20#74992=20[chrome-re?=
 =?UTF-8?q?mote-interface]=20expose=20CDP.ProtocolError=20for=20v0.34.0=20?=
 =?UTF-8?q?by=20@madisonrickert?=
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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 .../chrome-remote-interface-tests.ts          | 23 +++++++++++++++++++
 types/chrome-remote-interface/index.d.ts      | 14 +++++++++++
 types/chrome-remote-interface/package.json    |  2 +-
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/types/chrome-remote-interface/chrome-remote-interface-tests.ts b/types/chrome-remote-interface/chrome-remote-interface-tests.ts
index 2b35fced6d8bea..ce2ec55644a9c3 100644
--- a/types/chrome-remote-interface/chrome-remote-interface-tests.ts
+++ b/types/chrome-remote-interface/chrome-remote-interface-tests.ts
@@ -408,3 +408,26 @@ CDP.Activate({ id: "CC46FBFA-3BDA-493B-B2E4-2BE6EB0D97EC" }, (err) => {
 CDP.Version((err, info) => {
     if (!err) {}
 });
+
+(async () => {
+    const client = await CDP();
+    try {
+        await client.send("Page.navigate", { url: "https://github.com" });
+    } catch (err) {
+        if (err instanceof CDP.ProtocolError) {
+            // $ExpectType ProtocolErrorRequest
+            err.request;
+            // $ExpectType string
+            err.request.method;
+            // $ExpectType SendError
+            err.response;
+            // $ExpectType number
+            err.response.code;
+            // $ExpectType string
+            err.response.message;
+        }
+    }
+
+    // @ts-expect-error
+    new CDP.ProtocolError({} as any, {} as any);
+})();
diff --git a/types/chrome-remote-interface/index.d.ts b/types/chrome-remote-interface/index.d.ts
index 6d479cea3d04cd..19a2d049af3eff 100644
--- a/types/chrome-remote-interface/index.d.ts
+++ b/types/chrome-remote-interface/index.d.ts
@@ -1,6 +1,12 @@
 import type ProtocolMappingApi from "devtools-protocol/types/protocol-mapping";
 import type ProtocolProxyApi from "devtools-protocol/types/protocol-proxy-api";
 
+declare class ProtocolError extends Error {
+    private constructor();
+    readonly request: CDP.ProtocolErrorRequest;
+    readonly response: CDP.SendError;
+}
+
 declare namespace CDP {
     interface BaseOptions {
         host?: string | undefined;
@@ -44,6 +50,12 @@ declare namespace CDP {
         data?: string | undefined;
     }
 
+    interface ProtocolErrorRequest {
+        method: string;
+        params?: object | undefined;
+        sessionId?: string | undefined;
+    }
+
     interface SendCallback<T extends keyof ProtocolMappingApi.Commands> {
         (error: true, response: SendError): void;
         (error: false, response: ProtocolMappingApi.Commands[T]["returnType"]): void;
@@ -430,6 +442,8 @@ declare const CDP: {
     Version(options: CDP.BaseOptions, callback: (err: Error | null, info: CDP.VersionResult) => void): void;
     Version(callback: (err: Error | null, info: CDP.VersionResult) => void): void;
     Version(options?: CDP.BaseOptions): Promise<CDP.VersionResult>;
+
+    readonly ProtocolError: typeof ProtocolError;
 };
 
 export = CDP;
diff --git a/types/chrome-remote-interface/package.json b/types/chrome-remote-interface/package.json
index c31833ea4be8e5..f481914241399b 100644
--- a/types/chrome-remote-interface/package.json
+++ b/types/chrome-remote-interface/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@types/chrome-remote-interface",
-    "version": "0.33.9999",
+    "version": "0.34.9999",
     "projects": [
         "https://github.com/cyrus-and/chrome-remote-interface"
     ],