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fix(browser): cancel Chrome MCP requests on crash
1 parent 5c4b639 commit 66e5519

13 files changed

Lines changed: 486 additions & 396 deletions

‎CHANGELOG.md‎

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Original file line numberDiff line numberDiff line change
@@ -23,6 +23,7 @@ Docs: https://docs.openclaw.ai
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### Fixes
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- **Existing-session browser crash recovery:** cancel Chrome MCP requests and route wait timers when browser control requests abort, clearing dead sessions so automation can reconnect instead of leaving agent turns pending. (#101070) Thanks @aniruddhaadak80.
2627
- **Packaged speech runtime:** stop treating package-backed `speech-core` as a bundled plugin sidecar, restoring TTS startup in npm installs while release checks keep true activation-bypassing facades package-complete. (#89899, #89425) Thanks @zhangguiping-xydt.
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- **Codex app-server protocol:** require app-server 0.142 or newer, remove pre-0.142 wire-shape compatibility, and teach Codex to retrieve deferred native `spawn_agent` through `tool_search` so native subagent task mirroring works on search-capable models. (#101221)
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- **Android hardware keyboard chat:** send with unmodified Enter on physical keyboards while preserving Shift+Enter and other modified Enter combinations for multiline input. (#101239) Thanks @3ninyt3nin-creator.

‎extensions/browser/src/browser/chrome-mcp.test.ts‎

Lines changed: 87 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,7 @@
22
import fs from "node:fs/promises";
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import os from "node:os";
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import path from "node:path";
5+
import { ErrorCode, McpError } from "@modelcontextprotocol/sdk/types.js";
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import { MAX_TIMER_TIMEOUT_MS } from "openclaw/plugin-sdk/number-runtime";
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import {
@@ -27,10 +28,22 @@ type ToolCall = {
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};
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type ToolCallMock = {
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mock: {
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calls: Array<[ToolCall]>;
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calls: Array<[ToolCall, unknown?, { signal?: AbortSignal; timeout?: number }?]>;
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};
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};
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function createSdkTimeoutCallTool() {
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return vi.fn(
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async (_call: ToolCall, _resultSchema?: unknown, options?: { timeout?: number }) =>
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await new Promise<never>((_resolve, reject) => {
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setTimeout(
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() => reject(new McpError(ErrorCode.RequestTimeout, "Request timed out")),
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options?.timeout,
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);
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}),
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);
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}
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3447
type ChromeMcpSessionFactory = Exclude<
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Parameters<typeof setChromeMcpSessionFactoryForTest>[0],
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null
@@ -1195,20 +1208,29 @@ describe("chrome MCP page parsing", () => {
11951208

11961209
it("times out a stuck click and recovers on the next call", async () => {
11971210
let factoryCalls = 0;
1211+
let forwardedTimeout: number | undefined;
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const factory: ChromeMcpSessionFactory = async () => {
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factoryCalls += 1;
12001214
const session = createFakeSession();
1201-
const callTool = vi.fn(async ({ name }: ToolCall) => {
1202-
if (name === "click") {
1203-
return await new Promise(() => {});
1204-
}
1205-
if (name === "list_pages") {
1206-
return {
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content: [{ type: "text", text: "## Pages\n1: https://example.com [selected]" }],
1208-
};
1209-
}
1210-
throw new Error(`unexpected tool ${name}`);
1211-
});
1215+
const callTool = vi.fn(
1216+
async ({ name }: ToolCall, _resultSchema?: unknown, options?: { timeout?: number }) => {
1217+
if (name === "click") {
1218+
forwardedTimeout = options?.timeout;
1219+
return await new Promise((_, reject) => {
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setTimeout(
1221+
() => reject(new McpError(ErrorCode.RequestTimeout, "Request timed out")),
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options?.timeout,
1223+
);
1224+
});
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}
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if (name === "list_pages") {
1227+
return {
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content: [{ type: "text", text: "## Pages\n1: https://example.com [selected]" }],
1229+
};
1230+
}
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throw new Error(`unexpected tool ${name}`);
1232+
},
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);
12121234
session.client.callTool = callTool as typeof session.client.callTool;
12131235
return session;
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};
@@ -1223,11 +1245,61 @@ describe("chrome MCP page parsing", () => {
12231245
}),
12241246
).rejects.toThrow(/timed out/i);
12251247

1248+
expect(forwardedTimeout).toBe(25);
12261249
const tabs = await listChromeMcpTabs("chrome-live");
12271250
expect(factoryCalls).toBe(2);
12281251
expect(tabs).toHaveLength(1);
12291252
});
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1254+
it("cancels a stuck evaluate through the SDK signal and reconnects", async () => {
1255+
let factoryCalls = 0;
1256+
let forwardedSignal: AbortSignal | undefined;
1257+
let notifyToolStarted: (() => void) | undefined;
1258+
const toolStarted = new Promise<void>((resolve) => {
1259+
notifyToolStarted = resolve;
1260+
});
1261+
const factory: ChromeMcpSessionFactory = async () => {
1262+
factoryCalls += 1;
1263+
const session = createFakeSession();
1264+
if (factoryCalls === 1) {
1265+
session.client.callTool = vi.fn(
1266+
async (_call: ToolCall, _resultSchema?: unknown, options?: { signal?: AbortSignal }) =>
1267+
await new Promise((_resolve, reject) => {
1268+
const signal = options?.signal;
1269+
forwardedSignal = signal;
1270+
notifyToolStarted?.();
1271+
signal?.addEventListener(
1272+
"abort",
1273+
() => {
1274+
reject(signal.reason instanceof Error ? signal.reason : new Error("aborted"));
1275+
},
1276+
{
1277+
once: true,
1278+
},
1279+
);
1280+
}),
1281+
) as typeof session.client.callTool;
1282+
}
1283+
return session;
1284+
};
1285+
setChromeMcpSessionFactoryForTest(factory);
1286+
const ctrl = new AbortController();
1287+
const evaluatePromise = evaluateChromeMcpScript({
1288+
profileName: "chrome-live",
1289+
targetId: "1",
1290+
fn: "() => window.location.href",
1291+
signal: ctrl.signal,
1292+
});
1293+
1294+
await toolStarted;
1295+
expect(forwardedSignal).toBe(ctrl.signal);
1296+
ctrl.abort(new Error("target browser crashed"));
1297+
1298+
await expect(evaluatePromise).rejects.toThrow(/target browser crashed/i);
1299+
await expect(listChromeMcpTabs("chrome-live")).resolves.toHaveLength(2);
1300+
expect(factoryCalls).toBe(2);
1301+
});
1302+
12311303
it("does not dispatch a click when the signal is already aborted", async () => {
12321304
const session = createFakeSession();
12331305
const callTool = vi.fn(async (_call: ToolCall) => {
@@ -1403,11 +1475,7 @@ describe("chrome MCP page parsing", () => {
14031475
factoryCalls += 1;
14041476
const session = createFakeSession();
14051477
if (factoryCalls === 1) {
1406-
// First session: all tool calls hang — simulates a Chrome MCP subprocess that is
1407-
// completely blocked (e.g., stuck waiting for a slow navigation to complete).
1408-
session.client.callTool = vi.fn(
1409-
async () => new Promise<never>(() => {}),
1410-
) as typeof session.client.callTool;
1478+
session.client.callTool = createSdkTimeoutCallTool() as typeof session.client.callTool;
14111479
}
14121480
return session;
14131481
};
@@ -1437,12 +1505,10 @@ describe("chrome MCP page parsing", () => {
14371505
expect(tabs).toHaveLength(2);
14381506
});
14391507

1440-
it("forwards an explicit timeoutMs to take_snapshot via the callTool race", async () => {
1508+
it("forwards an explicit timeoutMs to take_snapshot through the SDK", async () => {
14411509
vi.useFakeTimers();
14421510
const session = createFakeSession();
1443-
session.client.callTool = vi.fn(
1444-
async () => new Promise<never>(() => {}),
1445-
) as typeof session.client.callTool;
1511+
session.client.callTool = createSdkTimeoutCallTool() as typeof session.client.callTool;
14461512
setChromeMcpSessionFactoryForTest(async () => session);
14471513

14481514
const snapshotPromise = takeChromeMcpSnapshot({

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