yFilter</code> resource configures the proxy to add the <code>envoy.filter.http.wasm</code> filter and load the Wasm module from the <code>wasme-cache</code>.</p><p>Once the Wasm extension is loaded into the Istio service proxy, it will extend the capabilities of the proxy with whatever custom code you introduced.</p><h2 id=next-steps>Next Steps</h2><p>In this blog we explored options for installing Wasm extensions into Istio workloads. The easiest way to get started with WebAssembly on Istio is to use the 