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Josh Story
ec5e9c2a75
I found a couple scenarios where preloads were issued too aggressively 1. During SSR, if you render a new stylesheet after the preamble flushed it will flush a preload even if the resource was already preloaded 2. During Client render, if you call `ReactDOM.preload()` it will only check if a preload exists in the Document before inserting a new one. It should check for an underlying resource such as a stylesheet link or script if the preload is for a recognized asset type
react-dom
This package serves as the entry point to the DOM and server renderers for React. It is intended to be paired with the generic React package, which is shipped as react to npm.
Installation
npm install react react-dom
Usage
In the browser
import { createRoot } from 'react-dom/client';
function App() {
return <div>Hello World</div>;
}
const root = createRoot(document.getElementById('root'));
root.render(<App />);
On the server
import { renderToPipeableStream } from 'react-dom/server';
function App() {
return <div>Hello World</div>;
}
function handleRequest(res) {
// ... in your server handler ...
const stream = renderToPipeableStream(<App />, {
onShellReady() {
res.statusCode = 200;
res.setHeader('Content-type', 'text/html');
stream.pipe(res);
},
// ...
});
}
API
react-dom
See https://react.dev/reference/react-dom
react-dom/client
See https://react.dev/reference/react-dom/client