plugin-javascript

A plugin for sitespeed.io that identifies and logs JavaScript errors during web performance testing. Current stable version is 2026.6.0, released as part of sitespeed.io's yearly release cycle. Integrates seamlessly with sitespeed.io to capture JS errors from browser sessions and report them. Unlike general error monitoring tools, it is specifically built for sitespeed.io's plugin architecture and complements webperf-core. Requires Node.js >=20.x and sitespeed.io as a peer dependency.