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- [EDGE_FUNCTION_INVOCATION_FAILED](/docs/errors/EDGE_FUNCTION_INVOCATION_FAILED.md): The EDGE_FUNCTION_INVOCATION_FAILED error occurs when there is an issue with the Edge Function being invoked on the CDN. This error can be caused by
- [Backends on Vercel](/docs/frameworks/backend.md): Backends deployed to Vercel receive the benefits of Vercel's infrastructure, including Fluid computeZeroconfiguration, optimized concurrency, dynamic
- [CDN Requests](#cdnrequests)[](/docs/manage-cdn-usage.md): When visiting your site, requests are made to a Vercel CDN region. Traffic is routed to the nearest region to the visitor. Static assets and
- [Functions with Edge Runtime](#functionswithedgeruntime)[](/docs/build-output-api/primitives.md): .vercel/output/functions vercel/examples/buildoutputapi/edgefunctions A Function with Edge Runtime is represented on the file system as a directory
- [Using Edge Config with an integration](/docs/edge-config/edge-config-integrations.md): Edge Config integrations are available on all plans Vercel has partnered with A/B testing and feature flag services such as LaunchDarkly and Statsig

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