const srcDoc = ` <script type="module"> import mxcn from "https://cdn.jsdelivr.net/npm/mxcn@2.0.0/+esm" window.addEventListener("message", ({ data }) => { try { event.source.postMessage(mxcn(data.className), "*"); } catch (e) { // ignore } }, false); </script> `; return ( <iframe className="d-none" srcDoc={srcDoc} message={{ className: props.className, }} onMessage={props.output} /> );