speed-insights

Hi, am trying to setup the speed-insights module on the directory but I get this error Stack: turbo v1.11.1 React v18.2.0 TypeScript v4.9.4

📓 What's in there? This PR improves the script injection process for Vercel Speed Insights by adding a warm-up function. Before injecting the main script, the code performs a fetch to the script URL to "warm up" the endpoint (even if the first response might be HTML). This change is intended to reduce errors related to cold starts, ensuring that when the actual script is loaded, the endpoint is ready to serve valid JavaScript. Issue https://github.com/vercel/speed-insights/issues/98 🧪 How to test? Open a page that uses Speed Insights injection. Verify that the script tag is appended to the document head after the warm-up call. ❗ Notes to reviewers This change is purely additive and does not affect the core functionality of Speed Insights. Please verify that this approach reduces errors associated with cold starts without introducing side effects in both development and production environments.

🖖 What's in there? This PR introduce loads a stringified configuration when injecting the script, which acts as defaults for unspecified properties. This mechanism is a generic way for Vercel to configure at build time and other "client side" packages, while allowing users to override the configuration when needed. Finally, it replaces eslint+prettier with biome, and husky+lint-staged with lefthook, and restore unit tests in CI. 🤺 How to test? It's not tested on CI, because I need to define configuration strings at build time when deploying the test applications on Vercel. At least the exiting tests are checking that it's fully backward compatible. As for manual tests: 1. go to any test application inside the folder 3. build the app using the appropriate env var: (Next), (Astro), (all others) and give it these values 1. custom injected script URL . 1. production injected script + custom ingestion intake URL 5. run the application locally ( or ) and browse to it with dev tools open on the network tab. 1. attempt to inject the script from the provided (fake) url 1. attempt to collect the page vitals to the provided (fake) url for example: or 🔬Notes to reviewers All changes on test apps are due to biome's linter and formatter.

This PR restructures the Nuxt module to provide a cleaner developer experience. One-line usage For Nuxt users wanting to enable Vercel Speed Insights without the need to configure anything: Custom usage If the user needs to specify options, they can use the function in a Nuxt plugin: Component usage Using the `app.vueerror.vue`.