Create val
/** @jsxImportSource https://esm.sh/react */
import react_http from "https://esm.town/v/stevekrouse/react_http?v=6";
import { useState } from "https://esm.sh/react@18.2.0";

export function App() {
  const [ count, setCount ] = useState(0)
  return (
    <div>
      <h1>Example App</h1>
    </div>
  )
}

export default () => react_http({
  component: App,
  sourceURL: import.meta.url,
   head: `<meta charset="UTF-8" />
          <meta name="viewport" content="width=device-width, initial-scale=1.0" />
          <script src="https://cdn.tailwindcss.com"></script>
          <title>Example App</title>`
})

The val with your React component will be imported in the browser. Thus, only use https imports in this val and any that it imports. Replace any npm: with https://esm.sh/ and everything should work great.