webdriverio/webdriverio

[🐛 Bug]: Firefox on Windows 10 fails with `browsingContext.navigationStarted is not a valid event name`

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#14.500 aberto em 21 de mai. de 2025

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Bug 🐛help wanted

Description

Have you read the Contributing Guidelines on issues?

WebdriverIO Version

9.14.0

Node.js Version

22.15.1

Mode

Standalone Mode

Which capabilities are you using?

capabilities: {
	browserName: "firefox",
	"moz:firefoxOptions": {
		args: ["-headless"]
	}
}

What happened?

I can not run tests in Firefox on my Windows 10 Build Agent. The error is:

Error: WebDriver Bidi command "session.subscribe" failed with error: invalid argument - browsingContext.navigationStarted is not a valid event name

Everything runs as expected on my Windows 11 development machine. Unfortunately I can not access another Window 10 machine right now.

I experimented with the versions and webdriverio 9.6.4 works and 9.7.0 doesn't.

What is your expected behavior?

The session should open.

How to reproduce the bug.

I created an MRE:

// raw.js
import { remote } from "webdriverio";

const browser = await remote({
capabilities: {
	browserName: "firefox",
	"moz:firefoxOptions": {
		args: ["-headless"]
	}
},
	logLevel: "info",
});

await browser.url(`about:blank`);
const expected = "";
const value = await browser.getTitle();
if(value !== expected) console.error(`Wrong value! Expected "${expected}", actual "${value}"!`);

// Now we need to close the browser window, because it stays open after this
// program exits
// This is a different topic.
try {
	// Throws: "TypeError: Cannot read properties of undefined (reading 'length')"
	// window is closed
	await browser.closeWindow();
} catch (error) {
	console.log(error);
} finally {
	process.exit();
}

Relevant log output

Starting: run tests
==============================================================================
Task         : Command line
Description  : Run a command line script using Bash on Linux and macOS and cmd.exe on Windows
Version      : 2.250.1
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/command-line
==============================================================================
Generating script.
Script contents: shell
node raw.js
========================== Starting Command Output ===========================
"C:\Windows\system32\cmd.exe" /D /E:ON /V:OFF /S /C "CALL "C:\a\_temp\7cb9ffef-c814-47c7-bfee-67a5f52ac0a8.cmd""
2025-05-21T05:25:15.706Z INFO webdriver: Initiate new session using the WebDriver protocol
2025-05-21T05:25:16.055Z INFO geckodriver: Starting Geckodriver at C:\Users\AzDevOps\AppData\Local\Temp\geckodriver.exe with params: --port=60304 --allow-hosts=localhost --host=0.0.0.0 --websocket-port=0
2025-05-21T05:25:16.078Z INFO geckodriver: 1747805116088	geckodriver	INFO	Listening on 0.0.0.0:60304
2025-05-21T05:25:16.081Z INFO @wdio/utils: Started GeckoDriver in 41ms on port 60304
2025-05-21T05:25:16.085Z INFO webdriver: [POST] http://localhost:60304/session
2025-05-21T05:25:16.085Z INFO webdriver: DATA {
  capabilities: {
    alwaysMatch: {
      browserName: 'firefox',
      'moz:firefoxOptions': [Object],
      webSocketUrl: true,
      unhandledPromptBehavior: 'ignore'
    },
    firstMatch: [ {} ]
  }
}
2025-05-21T05:25:16.112Z INFO geckodriver: 1747805116123	mozrunner::runner	INFO	Running command: "C:\\Program Files\\Mozilla Firefox\\firefox.exe" "--marionette" "-headless" "--remote-debugging-port" "0" "--remote-allow-hosts" "localhost" "-no-remote" "-profile" "C:\\Users\\AzDevOps\\AppData\\Local\\Temp\\rust_mozprofilejPnt8x"
2025-05-21T05:25:16.187Z WARN geckodriver: *** You are running in headless mode.
2025-05-21T05:25:16.278Z INFO geckodriver: console.warn: services.settings: Ignoring preference override of remote settings server
2025-05-21T05:25:16.279Z INFO geckodriver: console.warn: services.settings: Allow by setting MOZ_REMOTE_SETTINGS_DEVTOOLS=1 in the environment
2025-05-21T05:25:16.512Z INFO geckodriver: 1747805116524	Marionette	INFO	Marionette enabled
2025-05-21T05:25:16.515Z WARN geckodriver: Dynamically enable window occlusion 0
2025-05-21T05:25:16.518Z INFO geckodriver: 1747805116530	Marionette	INFO	Listening on port 60309
2025-05-21T05:25:16.533Z INFO geckodriver: Read port: 60309
2025-05-21T05:25:16.624Z WARN geckodriver: WebDriver BiDi listening on ws://127.0.0.1:60311
2025-05-21T05:25:17.379Z INFO geckodriver: [GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt
2025-05-21T05:25:18.187Z WARN geckodriver: [ERROR glean_core] Error setting metrics feature config: Json(Error("EOF while parsing a value", line: 1, column: 0))
2025-05-21T05:25:18.501Z WARN geckodriver: DevTools listening on ws://127.0.0.1:60311/devtools/browser/0262dfcb-d58f-488d-a46a-27a602f2bdf9
2025-05-21T05:25:18.533Z INFO webdriver: Register BiDi handler for session with id 43842fab-a29a-45bf-9871-f6d1bc9a17e5
2025-05-21T05:25:18.534Z INFO webdriver: Connecting to webSocketUrl ws://127.0.0.1:60311/session/43842fab-a29a-45bf-9871-f6d1bc9a17e5
2025-05-21T05:25:18.550Z INFO geckodriver: 1747805118562	RemoteAgent	INFO	Perform WebSocket upgrade for incoming connection from 127.0.0.1:60320
2025-05-21T05:25:18.555Z INFO webdriver: Connected to Bidi protocol at ws://127.0.0.1:60311/session/43842fab-a29a-45bf-9871-f6d1bc9a17e5
2025-05-21T05:25:18.555Z INFO webdriver: Connected to WebDriver Bidi interface at ws://127.0.0.1:60311/session/43842fab-a29a-45bf-9871-f6d1bc9a17e5
2025-05-21T05:25:18.556Z INFO webdriver: BIDI COMMAND browsingContext.getTree {}
2025-05-21T05:25:18.558Z INFO webdriver: BIDI COMMAND session.subscribe {"events":["browsingContext.contextCreated"]}
2025-05-21T05:25:18.559Z INFO webdriver: BIDI COMMAND session.subscribe {"events":["log.entryAdded","browsingContext.navigationStarted"]}
2025-05-21T05:25:18.559Z INFO webdriver: BIDI COMMAND script.addPreloadScript { functionDeclaration: <PreloadScript[1319 bytes]>, contexts: undefined }
2025-05-21T05:25:18.560Z INFO webdriver: BIDI COMMAND session.subscribe {"events":["browsingContext.navigationStarted","browsingContext.fragmentNavigated","network.responseCompleted","network.beforeRequestSent","network.fetchError"]}
2025-05-21T05:25:18.561Z INFO webdriver: BIDI COMMAND session.subscribe {"events":["browsingContext.userPromptOpened"]}
2025-05-21T05:25:18.562Z INFO webdriver: BIDI COMMAND session.subscribe {"events":["browsingContext.navigationStarted"]}
2025-05-21T05:25:18.563Z INFO webdriver: COMMAND getWindowHandle()
2025-05-21T05:25:18.564Z INFO webdriver: [GET] http://localhost:60304/session/43842fab-a29a-45bf-9871-f6d1bc9a17e5/window
2025-05-21T05:25:18.570Z INFO webdriver: BIDI RESULT {"id":1,"result":{"contexts":[{"context":"53645d30-9a61-4804-a200-ebcbcca30007","url":"about:blank","children":[],"parent":null}]}}
2025-05-21T05:25:18.571Z INFO webdriverio:PolyfillManager: Adding polyfill script to context with id 53645d30-9a61-4804-a200-ebcbcca30007
2025-05-21T05:25:18.571Z INFO webdriver: BIDI COMMAND script.addPreloadScript { functionDeclaration: <PreloadScript[442 bytes]>, contexts: ["53645d30-9a61-4804-a200-ebcbcca30007"] }
2025-05-21T05:25:18.572Z INFO webdriver: BIDI COMMAND script.callFunction {"functionDeclaration":"<Function[442 bytes] webdriverioPolyfill>","target":{"context":"53645d30-9a61-4804-a200-ebcbcca30007","url":"about:blank","children":[],"parent":null},"awaitPromise":false}
node:internal/process/promises:394
2025-05-21T05:25:18.575Z INFO webdriver: BIDI RESULT {"id":3,"error":"invalid argument","message":"browsingContext.navigationStarted is not a valid event name","stacktrace":"RemoteError@chrome://remote/content/shared/RemoteError.sys.mjs:8:8\nWebDriverError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:183:5\nInvalidArgumentError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:312:5\n#assertModuleSupportsEvent@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:122:13\n#obtainEvents@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:191:38\n#updateEventMap/<@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:264:25\n#updateEventMap@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:263:25\nsubscribe@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:77:43\nhandleCommand@chrome://remote/content/shared/messagehandler/MessageHandler.sys.mjs:249:33\nexecute@chrome://remote/content/shared/webdriver/Session.sys.mjs:244:32\nonPacket@chrome://remote/content/webdriver-bidi/WebDriverBiDiConnection.sys.mjs:175:37\nonMessage@chrome://remote/content/server/WebSocketTransport.sys.mjs:83:18\nhandleEvent@chrome://remote/content/server/WebSocketTransport.sys.mjs:65:14\n"}
    triggerUncaughtException(err, true /* fromPromise */);
2025-05-21T05:25:18.697Z INFO webdriver: BIDI RESULT {"id":5,"error":"invalid argument","message":"browsingContext.navigationStarted is not a valid event name","stacktrace":"RemoteError@chrome://remote/content/shared/RemoteError.sys.mjs:8:8\nWebDriverError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:183:5\nInvalidArgumentError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:312:5\n#assertModuleSupportsEvent@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:122:13\n#obtainEvents@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:191:38\n#updateEventMap/<@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:264:25\n#updateEventMap@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:263:25\nsubscribe@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:77:43\nhandleCommand@chrome://remote/content/shared/messagehandler/MessageHandler.sys.mjs:249:33\nexecute@chrome://remote/content/shared/webdriver/Session.sys.mjs:244:32\nonPacket@chrome://remote/content/webdriver-bidi/WebDriverBiDiConnection.sys.mjs:175:37\nonMessage@chrome://remote/content/server/WebSocketTransport.sys.mjs:83:18\nhandleEvent@chrome://remote/content/server/WebSocketTransport.sys.mjs:65:14\n"}
    ^
2025-05-21T05:25:18.698Z INFO webdriver: BIDI RESULT {"id":6,"error":"invalid argument","message":"browsingContext.userPromptOpened is not a valid event name","stacktrace":"RemoteError@chrome://remote/content/shared/RemoteError.sys.mjs:8:8\nWebDriverError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:183:5\nInvalidArgumentError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:312:5\n#assertModuleSupportsEvent@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:122:13\n#obtainEvents@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:191:38\n#updateEventMap/<@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:264:25\n#updateEventMap@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:263:25\nsubscribe@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:77:43\nhandleCommand@chrome://remote/content/shared/messagehandler/MessageHandler.sys.mjs:249:33\nexecute@chrome://remote/content/shared/webdriver/Session.sys.mjs:244:32\nonPacket@chrome://remote/content/webdriver-bidi/WebDriverBiDiConnection.sys.mjs:175:37\nonMessage@chrome://remote/content/server/WebSocketTransport.sys.mjs:83:18\nhandleEvent@chrome://remote/content/server/WebSocketTransport.sys.mjs:65:14\n"}

2025-05-21T05:25:18.698Z INFO webdriver: BIDI RESULT {"id":7,"error":"invalid argument","message":"browsingContext.navigationStarted is not a valid event name","stacktrace":"RemoteError@chrome://remote/content/shared/RemoteError.sys.mjs:8:8\nWebDriverError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:183:5\nInvalidArgumentError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:312:5\n#assertModuleSupportsEvent@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:122:13\n#obtainEvents@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:191:38\n#updateEventMap/<@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:264:25\n#updateEventMap@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:263:25\nsubscribe@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:77:43\nhandleCommand@chrome://remote/content/shared/messagehandler/MessageHandler.sys.mjs:249:33\nexecute@chrome://remote/content/shared/webdriver/Session.sys.mjs:244:32\nonPacket@chrome://remote/content/webdriver-bidi/WebDriverBiDiConnection.sys.mjs:175:37\nonMessage@chrome://remote/content/server/WebSocketTransport.sys.mjs:83:18\nhandleEvent@chrome://remote/content/server/WebSocketTransport.sys.mjs:65:14\n"}
Error: WebDriver Bidi command "session.subscribe" failed with error: invalid argument - browsingContext.navigationStarted is not a valid event name
2025-05-21T05:25:18.941Z INFO webdriver: BIDI RESULT {"id":2,"result":{}}
    at BidiHandler.send (file:///C:/a/2/s/node_modules/webdriver/build/node.js:472:23)
2025-05-21T05:25:18.941Z INFO webdriver: BIDI RESULT {"id":4,"result":{"script":"15179533-2a04-4906-8e01-321d534bd906"}}
    at BidiHandler.sessionSubscribe (file:///C:/a/2/s/node_modules/webdriver/build/node.js:588:31)
2025-05-21T05:25:18.942Z INFO webdriver: BIDI RESULT {"id":8,"result":{"script":"6d568607-d8b4-4d76-90b7-d4021e9ef43d"}}
    at Browser.value (file:///C:/a/2/s/node_modules/webdriver/build/node.js:1377:26)
2025-05-21T05:25:18.942Z INFO webdriver: BIDI RESULT {"id":9,"result":{"realm":"cb233076-6461-4dde-bac2-3c0f0b351352","type":"success","result":{"type":"undefined"}}}
    at Browser.wrapCommandFn (file:///C:/a/2/s/node_modules/@wdio/utils/build/index.js:907:32)
    at Browser.<anonymous> (file:///C:/a/2/s/node_modules/@wdio/utils/build/index.js:1022:20)
    at new _ContextManager (file:///C:/a/2/s/node_modules/webdriverio/build/node.js:280:21)
    at SessionManager.getSessionManager (file:///C:/a/2/s/node_modules/webdriverio/build/node.js:192:32)
    at getContextManager (file:///C:/a/2/s/node_modules/webdriverio/build/node.js:254:25)
    at registerSessionManager (file:///C:/a/2/s/node_modules/webdriverio/build/node.js:5077:5)
    at remote (file:///C:/a/2/s/node_modules/webdriverio/build/node.js:8783:9)

Driver Stack:
    at RemoteError@chrome://remote/content/shared/RemoteError.sys.mjs:8:8
    at WebDriverError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:183:5
    at InvalidArgumentError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:312:5
    at #assertModuleSupportsEvent@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:122:13
    at #obtainEvents@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:191:38
    at #updateEventMap/<@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:264:25
    at #updateEventMap@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:263:25
    at subscribe@chrome://remote/content/webdriver-bidi/modules/root/session.sys.mjs:77:43
    at handleCommand@chrome://remote/content/shared/messagehandler/MessageHandler.sys.mjs:249:33
    at execute@chrome://remote/content/shared/webdriver/Session.sys.mjs:244:32
    at onPacket@chrome://remote/content/webdriver-bidi/WebDriverBiDiConnection.sys.mjs:175:37
    at onMessage@chrome://remote/content/server/WebSocketTransport.sys.mjs:83:18
    at handleEvent@chrome://remote/content/server/WebSocketTransport.sys.mjs:65:14

Node.js v22.15.1
##[error]Cmd.exe exited with code '1'.
Finishing: run tests

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Is there an existing issue for this?

  • I have searched the existing issues

Guia do colaborador

Pilha de tecnologia
javascriptnodejs
Domain
testing
Tipo Issue
bug
DifficultyDificuldade de implementação estimada para um novo contribuidor, de 1 para alterações muito pequenas a 5 para trabalho de nível especializado.
3
Tempo estimadoUm intervalo de tempo aproximado para um colaborador experiente investigar, implementar, testar e preparar um pull request.
1-3 hours
Status da atividadeQuão disponível o issue aparece agora: novo, ativo, obsoleto, bloqueado ou aguardando entrada do mantenedor.
active
ClarityCom que clareza o issue explica a mudança esperada, os critérios de aceitação e a próxima etapa.
clear
Prerequisites
JavaScriptWebDriverIO basics
Simpatia para novatosUma pontuação de 1 a 100 que estima o quão acessível este issue é para colaboradores iniciantes.
65
Direção de pesquisa
Investigate the Firefox version on Windows 10 that produces the error. The error occurs when WebDriverIO attempts to subscribe to 'browsingContext.navigationStarted' event, which may not be supported in older Firefox versions. Look at the BiDi subscription logic in packages/webdriver/src/bidi/ directory and see if there is a mechanism to check Firefox version or event support before subscribing. Consider adding a fallback or version check based on the browser's capabilities. Also check the comments on the issue for any maintainer suggestions.