False positive when browser internal pdf is enabled #135

TLeiter · 2023-08-02T09:57:32Z

In Edge and Chrome if the setting "Open PDF in Chrome/Edge" is enabled (Settings > Privacy and security > Site settings > Additional content settings > PDF documents.), then the value navigator.plugins is empty which evalute the bot test to true.

TLeiter · 2023-10-02T06:06:15Z

Tested and not currently fixed.

xnerhu · 2023-10-02T09:42:52Z

Tested and not currently fixed.

Can you make sure you are on the latest version? Also please, send me botd snapshot from playgrond https://fingerprintjs.github.io/BotD/main/

TLeiter · 2023-10-02T09:53:48Z

Hello,

Hre is the snapshot from the playground:

{"isError":false,"collectionTime":20.199999928474426,"detectionTime":21.299999952316284,"detectionResult":{"bot":true,"botKind":"headless_chrome"},"detectedBot":"headless_chrome","collectedData":{"process":{"state":-1,"error":"BotdError: window.process is undefined"},"userAgent":{"value":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36","state":0},"appVersion":{"value":"5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36","state":0},"rtt":{"value":0,"state":0},"windowSize":{"value":{"outerWidth":2048,"outerHeight":1152,"innerWidth":2048,"innerHeight":1043},"state":0},"pluginsLength":{"value":0,"state":0},"pluginsArray":{"value":true,"state":0},"errorTrace":{"value":"TypeError: Cannot read properties of null (reading '0')\n at errorTrace (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:27921)\n/n) at n. (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:33455)\n/n) at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:21466\n at Object.next (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:21571)\n/n) at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:20487\n at new Promise ()\n at e (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:20232)\n/n) at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:33292\n at Array.map ()\n at n. ([https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:33268)","state":0},"productSub":{"value":"20030107","state":0},"windowExternal":{"value":"object%22,%22state%22:0%7d,%22productSub%22:%7b%22value%22:%2220030107%22,%22state%22:0%7d,%22windowExternal%22:%7b%22value%22:%22%5bobject) External]","state":0},"mimeTypesConsistent":{"value":true,"state":0},"evalLength":{"value":33,"state":0},"webGL":{"value":{"vendor":"WebKit","renderer":"WebKit WebGL"},"state":0},"webDriver":{"value":false,"state":0},"languages":{"value":[["en-US"]],"state":0},"documentElementKeys":{"value":["lang"],"state":0},"functionBind":{"value":"function bind() { [native code] }","state":0},"distinctiveProps":{"value":{"awesomium":false,"cef":false,"cefsharp":false,"coachjs":false,"fminer":false,"geb":false,"nightmarejs":false,"phantomas":false,"phantomjs":false,"rhino":false,"selenium":false,"webdriverio":false,"webdriver":false,"headless_chrome":false},"state":0},"notificationPermissions":{"value":false,"state":0}},"detectorsResults":{"detectAppVersion":{"bot":false},"detectDocumentAttributes":{"bot":false},"detectErrorTrace":{"bot":false},"detectEvalLengthInconsistency":{"bot":false},"detectFunctionBind":{"bot":false},"detectLanguagesLengthInconsistency":{"bot":false},"detectNotificationPermissions":{"bot":false},"detectPluginsArray":{"bot":false},"detectPluginsLengthInconsistency":{"bot":true,"botKind":"headless_chrome"},"detectProcess":{"bot":false},"detectUserAgent":{"bot":false},"detectWebDriver":{"bot":false},"detectWebGL":{"bot":false},"detectWindowExternal":{"bot":false},"detectWindowSize":{"bot":false},"detectMimeTypesConsistent":{"bot":false},"detectProductSub":{"bot":false},"detectDistinctiveProperties":{"bot":false}},"debugData":{"browserEngineKind":"chromium","browserKind":"chrome","documentFocus":true,"mozAppearanceSupport":false,"isAndroid":false,"isDesktopWebKit":false}}

xnerhu · 2023-11-05T12:57:14Z

@TLeiter I added support for detecting edge as BrowserKind, so it should fix the issue

AnastasiaPlague · 2024-01-16T13:04:01Z

We are encountering the same problem using the playground on latest Chrome, Chrome 119, Chrome 116. Steps are the same as the issue author described.

Would you look into it again?

{
  "isError": false,
  "collectionTime": 45.8000000002794,
  "detectionTime": 47.3000000002794,
  "detectionResult": { "bot": true, "botKind": "headless_chrome" },
  "detectedBot": "headless_chrome",
  "collectedData": {
    "process": {
      "state": -1,
      "error": "BotdError: window.process is undefined"
    },
    "android": { "value": false, "state": 0 },
    "browserKind": { "value": "chrome", "state": 0 },
    "browserEngineKind": { "value": "chromium", "state": 0 },
    "documentFocus": { "value": true, "state": 0 },
    "userAgent": {
      "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
      "state": 0
    },
    "appVersion": {
      "value": "5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
      "state": 0
    },
    "rtt": { "value": 100, "state": 0 },
    "windowSize": {
      "value": {
        "outerWidth": 1920,
        "outerHeight": 1040,
        "innerWidth": 1920,
        "innerHeight": 953
      },
      "state": 0
    },
    "pluginsLength": { "value": 0, "state": 0 },
    "pluginsArray": { "value": true, "state": 0 },
    "errorTrace": {
      "value": "TypeError: Cannot read properties of null (reading '0')\n    at errorTrace (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:45891)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39573\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:38227\n    at Object.next (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:38332)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:37248\n    at new Promise (<anonymous>)\n    at e (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:36993)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39410\n    at Array.map (<anonymous>)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39386",
      "state": 0
    },
    "productSub": { "value": "20030107", "state": 0 },
    "windowExternal": { "value": "[object External]", "state": 0 },
    "mimeTypesConsistent": { "value": true, "state": 0 },
    "evalLength": { "value": 33, "state": 0 },
    "webGL": {
      "value": { "vendor": "WebKit", "renderer": "WebKit WebGL" },
      "state": 0
    },
    "webDriver": { "value": false, "state": 0 },
    "languages": { "value": [["ru-RU"]], "state": 0 },
    "documentElementKeys": { "value": ["lang"], "state": 0 },
    "functionBind": {
      "value": "function bind() { [native code] }",
      "state": 0
    },
    "distinctiveProps": {
      "value": {
        "awesomium": false,
        "cef": false,
        "cefsharp": false,
        "coachjs": false,
        "fminer": false,
        "geb": false,
        "nightmarejs": false,
        "phantomas": false,
        "phantomjs": false,
        "rhino": false,
        "selenium": false,
        "webdriverio": false,
        "webdriver": false,
        "headless_chrome": false
      },
      "state": 0
    },
    "notificationPermissions": { "value": false, "state": 0 }
  },
  "detectorsResults": {
    "detectAppVersion": { "bot": false },
    "detectDocumentAttributes": { "bot": false },
    "detectErrorTrace": { "bot": false },
    "detectEvalLengthInconsistency": { "bot": false },
    "detectFunctionBind": { "bot": false },
    "detectLanguagesLengthInconsistency": { "bot": false },
    "detectNotificationPermissions": { "bot": false },
    "detectPluginsArray": { "bot": false },
    "detectPluginsLengthInconsistency": {
      "bot": true,
      "botKind": "headless_chrome"
    },
    "detectProcess": { "bot": false },
    "detectUserAgent": { "bot": false },
    "detectWebDriver": { "bot": false },
    "detectWebGL": { "bot": false },
    "detectWindowExternal": { "bot": false },
    "detectWindowSize": { "bot": false },
    "detectMimeTypesConsistent": { "bot": false },
    "detectProductSub": { "bot": false },
    "detectDistinctiveProperties": { "bot": false }
  },
  "debugData": {
    "browserEngineKind": "chromium",
    "browserKind": "chrome",
    "browserVersion": { "major": 120, "minor": 0 },
    "documentFocus": true,
    "mozAppearanceSupport": false,
    "isAndroid": false,
    "isDesktopWebKit": false,
    "isIPad": true
  }
}

xnerhu · 2024-01-16T16:22:46Z

AnastasiaPlague

Of course.

hwangzhiming · 2024-07-01T02:13:20Z

If the user sets Download PDFs instead of Open PDFs in Chrome in Chrome, the length of the plugin array will be 0, causing a false positive for headless detection. any solutions?

nketkar · 2024-07-23T01:04:09Z

I am also seeing a lot of false positives on the length of the Plugin array being 0. It appears the navigator.plugins array is deprecated anyways: https://developer.mozilla.org/en-US/docs/Web/API/Navigator/plugins

Can this rule be removed for good?

Jackenmen · 2024-08-13T00:15:28Z

I'm also running into this one as a user of one of the sites that use this lib, took me a while to figure out why, wish I knew that the lib has a playground 😄

logs

{"isError":false,"collectionTime":7.300000000745058,"detectionTime":7.400000002235174,"detectionResult":{"bot":true,"botKind":"headless_chrome"},"detectedBot":"headless_chrome","collectedData":{"process":{"state":-1,"error":"BotdError: window.process is undefined"},"android":{"value":false,"state":0},"browserKind":{"value":"chrome","state":0},"browserEngineKind":{"value":"chromium","state":0},"documentFocus":{"value":true,"state":0},"userAgent":{"value":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36","state":0},"appVersion":{"value":"5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36","state":0},"rtt":{"value":50,"state":0},"windowSize":{"value":{"outerWidth":1920,"outerHeight":1051,"innerWidth":1920,"innerHeight":964},"state":0},"pluginsLength":{"value":0,"state":0},"pluginsArray":{"value":true,"state":0},"errorTrace":{"value":"TypeError: Cannot read properties of null (reading '0')\n    at errorTrace (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:45891)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39573\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:38227\n    at Object.next (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:38332)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:37248\n    at new Promise (<anonymous>)\n    at e (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:36993)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39410\n    at Array.map (<anonymous>)\n    at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39386","state":0},"productSub":{"value":"20030107","state":0},"windowExternal":{"value":"[object External]","state":0},"mimeTypesConsistent":{"value":true,"state":0},"evalLength":{"value":33,"state":0},"webGL":{"value":{"vendor":"WebKit","renderer":"WebKit WebGL"},"state":0},"webDriver":{"value":false,"state":0},"languages":{"value":[["en-US"]],"state":0},"documentElementKeys":{"value":["lang"],"state":0},"functionBind":{"value":"function bind() { [native code] }","state":0},"distinctiveProps":{"value":{"awesomium":false,"cef":false,"cefsharp":false,"coachjs":false,"fminer":false,"geb":false,"nightmarejs":false,"phantomas":false,"phantomjs":false,"rhino":false,"selenium":false,"webdriverio":false,"webdriver":false,"headless_chrome":false},"state":0},"notificationPermissions":{"value":false,"state":0}},"detectorsResults":{"detectAppVersion":{"bot":false},"detectDocumentAttributes":{"bot":false},"detectErrorTrace":{"bot":false},"detectEvalLengthInconsistency":{"bot":false},"detectFunctionBind":{"bot":false},"detectLanguagesLengthInconsistency":{"bot":false},"detectNotificationPermissions":{"bot":false},"detectPluginsArray":{"bot":false},"detectPluginsLengthInconsistency":{"bot":true,"botKind":"headless_chrome"},"detectProcess":{"bot":false},"detectUserAgent":{"bot":false},"detectWebDriver":{"bot":false},"detectWebGL":{"bot":false},"detectWindowExternal":{"bot":false},"detectWindowSize":{"bot":false},"detectMimeTypesConsistent":{"bot":false},"detectProductSub":{"bot":false},"detectDistinctiveProperties":{"bot":false}},"debugData":{"browserEngineKind":"chromium","browserKind":"chrome","browserVersion":{"major":127,"minor":0},"documentFocus":true,"mozAppearanceSupport":false,"isAndroid":false,"isDesktopWebKit":false,"isIPad":true}}

Santas · 2024-11-19T12:13:52Z

Chrome 131 still affected with this PDF setting.

ivomasterche · 2024-11-24T21:34:53Z

Same here. Allowing chrome to open PDF fixes the false positive
Log with downloading pdf:

{"isError":false,"collectionTime":91.5,"detectionTime":91.70000000018626,"detectionResult":{"bot":true,"botKind":"headless_chrome"},"detectedBot":"headless_chrome","collectedData":{"process":{"state":-1,"error":"BotdError: window.process is undefined"},"android":{"value":false,"state":0},"browserKind":{"value":"chrome","state":0},"browserEngineKind":{"value":"chromium","state":0},"documentFocus":{"value":true,"state":0},"userAgent":{"value":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36","state":0},"appVersion":{"value":"5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36","state":0},"rtt":{"value":50,"state":0},"windowSize":{"value":{"outerWidth":1920,"outerHeight":1040,"innerWidth":1920,"innerHeight":953},"state":0},"pluginsLength":{"value":0,"state":0},"pluginsArray":{"value":true,"state":0},"errorTrace":{"value":"TypeError: Cannot read properties of null (reading '0')\n at errorTrace (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:45895)\n at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39515\n at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:38324\n at Object.next (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:38429)\n at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:37345\n at new Promise ()\n at e (https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:37090)\n at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39352\n at Array.map ()\n at https://fingerprintjs.github.io/BotD/main/main.bundle.js:1:39328","state":0},"productSub":{"value":"20030107","state":0},"windowExternal":{"value":"[object External]","state":0},"mimeTypesConsistent":{"value":true,"state":0},"evalLength":{"value":33,"state":0},"webGL":{"value":{"vendor":"WebKit","renderer":"WebKit WebGL"},"state":0},"webDriver":{"value":false,"state":0},"languages":{"value":[["bg-BG"]],"state":0},"documentElementKeys":{"value":["lang"],"state":0},"functionBind":{"value":"function bind() { [native code] }","state":0},"distinctiveProps":{"value":{"awesomium":false,"cef":false,"cefsharp":false,"coachjs":false,"fminer":false,"geb":false,"nightmarejs":false,"phantomas":false,"phantomjs":false,"rhino":false,"selenium":false,"webdriverio":false,"webdriver":false,"headless_chrome":false},"state":0},"notificationPermissions":{"value":false,"state":0}},"detectorsResults":{"detectAppVersion":{"bot":false},"detectDocumentAttributes":{"bot":false},"detectErrorTrace":{"bot":false},"detectEvalLengthInconsistency":{"bot":false},"detectFunctionBind":{"bot":false},"detectLanguagesLengthInconsistency":{"bot":false},"detectNotificationPermissions":{"bot":false},"detectPluginsArray":{"bot":false},"detectPluginsLengthInconsistency":{"bot":true,"botKind":"headless_chrome"},"detectProcess":{"bot":false},"detectUserAgent":{"bot":false},"detectWebDriver":{"bot":false},"detectWebGL":{"bot":false},"detectWindowExternal":{"bot":false},"detectWindowSize":{"bot":false},"detectMimeTypesConsistent":{"bot":false},"detectProductSub":{"bot":false},"detectDistinctiveProperties":{"bot":false}},"debugData":{"browserEngineKind":"chromium","browserKind":"chrome","browserVersion":{"major":131,"minor":0},"documentFocus":true,"mozAppearanceSupport":false,"isAndroid":false,"isDesktopWebKit":false,"isIPad":true}}

xnerhu added bug Something isn't working false-positive labels Aug 5, 2023

xnerhu mentioned this issue Aug 24, 2023

Fix false positives due to navitator plugins inconsistency #140

Merged

xnerhu closed this as completed Aug 24, 2023

xnerhu reopened this Oct 2, 2023

xnerhu mentioned this issue Nov 5, 2023

Add Edge browser kind #153

Merged

xnerhu closed this as completed in #153 Nov 6, 2023

xnerhu reopened this Jan 16, 2024

xnerhu added the help wanted Extra attention is needed label Oct 22, 2024

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

False positive when browser internal pdf is enabled #135

False positive when browser internal pdf is enabled #135

TLeiter commented Aug 2, 2023

TLeiter commented Oct 2, 2023

xnerhu commented Oct 2, 2023

TLeiter commented Oct 2, 2023

xnerhu commented Nov 5, 2023

AnastasiaPlague commented Jan 16, 2024

xnerhu commented Jan 16, 2024

hwangzhiming commented Jul 1, 2024

nketkar commented Jul 23, 2024

Jackenmen commented Aug 13, 2024

Santas commented Nov 19, 2024

ivomasterche commented Nov 24, 2024

False positive when browser internal pdf is enabled #135

False positive when browser internal pdf is enabled #135

Comments

TLeiter commented Aug 2, 2023

TLeiter commented Oct 2, 2023

xnerhu commented Oct 2, 2023

TLeiter commented Oct 2, 2023

xnerhu commented Nov 5, 2023

AnastasiaPlague commented Jan 16, 2024

xnerhu commented Jan 16, 2024

hwangzhiming commented Jul 1, 2024

nketkar commented Jul 23, 2024

Jackenmen commented Aug 13, 2024

Santas commented Nov 19, 2024

ivomasterche commented Nov 24, 2024