Bot.sannysoft

) that are sometimes absent or modified in "headless" browser modes. Permissions and Plugins

: Detects if the navigator.webdriver property is set to true , which is a default for most automation tools. bot.sannysoft

Headless browsers often return inconsistent permission states or report zero installed plugins. 5. WebGL & Canvas Fingerprinting ) that are sometimes absent or modified in

Utilize the puppeteer-extra-plugin-stealth or playwright-extra library, which automatically manages most evasion techniques by modifying browser behavior. bot.sannysoft

A DevOps team ran Selenium tests in GitLab CI. The tests passed locally but failed on the runner. A screenshot of revealed the runner had no fonts installed. Adding apt-get install fonts-dejavu-core solved the issue.