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Why not? Anti-detect browser tampering detected, potentially a bot, access denied. #299
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tuyendung1
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def test_fingerprintjs(page):
"""demo.fingerprint.com/web-scraping — industry-standard bot detection."""
page.goto("https://demo.fingerprint.com/web-scraping", wait_until="domcontentloaded", timeout=30000)
time.sleep(8)
# Click search to trigger bot detection — bots get blocked, humans see flights
try:
page.click("button:has-text('Search')", timeout=5000)
time.sleep(5)
except Exception:
pass
results = page.evaluate("""() => {
const text = document.body.innerText;
// Bots see error messages; humans see flight prices
const hasFlights = text.includes('Price per adult') || text.includes('$');
const isBlocked = text.includes('request was blocked') || text.includes('bot visit detected');
return {passed: hasFlights && !isBlocked, isBlocked, hasFlights};
}""")
return results
Anti-detect browser tampering detected, potentially a bot, access denied.
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Replies: 2 comments 1 reply
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Thanks for the report. "Anti-detect browser tampering" maps to FPJS's tampering: true signal — their ML catching patch anomalies in rendering output.
Try this config first (consistently passes FPJS playground across #124, #193, #197):
import cloakbrowser import time browser = cloakbrowser.launch( headless=False, geoip=True, proxy="http://user:pass@residential-proxy:port", args=[ "--fingerprint-noise=false", "--fingerprint-screen-width=1920", "--fingerprint-screen-height=1080", ], ) page = browser.new_page() page.goto("https://demo.fingerprint.com/web-scraping", wait_until="domcontentloaded", timeout=30000) time.sleep(8)
Key points:
--fingerprint-noise=false— noise is on by default and FPJS flags the variations as tamperingheadless=False— FPJS detects headless even with patchesgeoip=True+ residential proxy — resolves timezone + locale from exit IP; datacenter IPs get flagged at IP reputation level before fingerprinting runs- Use
launch(), notlaunch_persistent_context()— FPJS still flags persistent context (demo.fingerprint.com/playground detects as bot (type: nodriver) #124 ) time.sleep()instead ofpage.wait_for_timeout()—wait_for_timeoutsends CDP commands that anti-bot systems detect
If it still fails, share:
- CloakBrowser version (
pip show cloakbrowser) and binary version (ls ~/.cloakbrowser/) — tampering fixes landed across v0.3.26–0.3.30 - OS / environment — native Linux / Docker / Windows / macOS (Docker triggers tampering more than native; macOS rarely does)
Related: #193, #197, #294. Let us know if this works for you.
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1 reply
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Regarding Cloakbrowser Manager, when running a profile it reports 512MB RAM. 4GB RAM should support 8 profiles. Why is it lagging with 3 profiles after running Cloakbrowser? Or is it because running it with Docker makes Choium run better? Or is Choium on Docker different from the Cloakbrowser Python version?
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Can multi-profile gologin be used, bro? What about
launch_persistent_context_asynic(), or do I have to use launch()? And will
it bypass anti-detect browsers?
Vào 7:53, Th 7, 23 thg 5, 2026 Cloak-HQ ***@***.***> đã viết:
... Thanks for the report. "Anti-detect browser tampering" maps to FPJS's tampering:
true signal — their ML catching patch anomalies in rendering output.
*Try this config first* (consistently passes FPJS playground across #124
<#124>, #193
<#193>, #197
<#197>):
import cloakbrowserimport time
browser = cloakbrowser.launch(
headless=False,
geoip=True,
***@***.***:port",
args=[
"--fingerprint-noise=false",
"--fingerprint-screen-width=1920",
"--fingerprint-screen-height=1080",
],
)page = browser.new_page()page.goto("https://demo.fingerprint.com/web-scraping", wait_until="domcontentloaded", timeout=30000)time.sleep(8)
Key points:
- --fingerprint-noise=false — noise is on by default and FPJS flags
the variations as tampering
- headless=False — FPJS detects headless even with patches
- geoip=True + residential proxy — resolves timezone + locale from
exit IP; datacenter IPs get flagged at IP reputation level before
fingerprinting runs
- Use launch(), not launch_persistent_context() — FPJS still flags
persistent context (#124
<#124>)
- time.sleep() instead of page.wait_for_timeout() — wait_for_timeout
sends CDP commands that anti-bot systems detect
If it still fails, share:
1. *CloakBrowser version* (pip show cloakbrowser) and *binary version*
(ls ~/.cloakbrowser/) — tampering fixes landed across v0.3.26–0.3.30
2. *OS / environment* — native Linux / Docker / Windows / macOS
(Docker triggers tampering more than native; macOS rarely does)
Related: #193 <#193>, #197
<#197>, #294
<#294>. Let us know if this
works for you.
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