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Tools that move non-critical scripts into isolated background threads.
Distinct from Third-Party Script Security: Focuses on the isolation of scripts for performance, distinct from security-focused script management.
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Partytown is a library designed to offload resource-intensive third-party scripts to background web workers. By executing these scripts outside of the main thread, it prevents them from blocking the critical rendering path, thereby maintaining a responsive user interface and improving overall page load performance. The project functions as a web worker proxy library that synchronizes browser interfaces between the main thread and background environments. It uses proxy-based access and synchronous messaging to replicate global objects like the window and document, allowing scripts to interact
Moves non-critical scripts into web workers to prevent them from blocking the critical rendering path.