JavaScript errors and failed network requests are silent killers of conversion rates and user retention. A broken form submission, a failed API call in the checkout flow, or an uncaught promise rejection might affect only certain browsers, devices, or user flows — and you'd never know without actively monitoring your production site for runtime errors. Static analysis and build-time linting can't catch errors that only occur when real data, user state, and third-party scripts interact at runtime.
The Runtime Error Inspector loads your URL in a real headless Chromium browser, monitors the page for a configurable duration, and automatically captures all runtime issues: JavaScript exceptions with full stack traces, failed XHR and fetch requests, HTTP 4xx/5xx errors, console errors and warnings, and mixed content violations (HTTP resources on HTTPS pages). Each detected issue is then analyzed by AI to generate a plain-language explanation — what happened, why it matters, and exactly how to fix it — so you don't need deep debugging expertise to act on the results.