osystem><a href=#ecosystem>Ecosystem</a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><p>WebAssembly is a sandboxing technology which can be used to extend the Istio proxy (Envoy). The Proxy-Wasm sandbox API replaces Mixer as the primary extension mechanism in Istio.</p><p>WebAssembly sandbox goals:</p><ul><li><strong>Efficiency</strong> - An extension adds low latency, CPU, and memory overhead.</li><li><strong>Function</strong> - An extension can enforce policy