d observe services.">Istio</a></li><li><a href=/v1.8/blog/ title="Posts about using Istio.">Blog</a></li><li><a href=/v1.8/blog/2020/ title="Blog posts for 2020.">2020 Posts</a></li><li>Redefining extensibility in proxies - introducing WebAssembly to Envoy and Istio</li></ol></nav><article aria-labelledby=title><div class=title-area><div style=width:100%><h1 id=title>Redefining extensibility in proxies - introducing WebAssembly to Envoy and Istio</h1><p class=subtitle>A new interface for extending proxy ser