Many websites require users to complete a simple anti-captcha test as part of their verification process. This is done to prevent automated scripts, like robots or bots, from accessing their content.
For security reasons, some websites now use JavaScript-based anti-captcha tests that need to be enabled in order for the page to function correctly.
If JavaScript is disabled, a message will pop up stating that JavaScript must be re-enabled and the webpage needs to be reloaded. This is a common practice used by several websites to ensure they can verify users’ human authenticity.
Source: https://www.seattletimes.com/sports/seahawks/why-cooper-kupps-wa-homecoming-is-worth-the-risk-for-seahawks