Comments (2)
I followed this thread here and here is one possible solution implementing LoadingComponent
:
class SSRAsyncLoadingComponent extends Component {
shouldComponentUpdate() {
return false;
}
getExistingHtml(selector) {
if (typeof document === 'undefined') {
return null;
}
const node = document.querySelector(selector);
return (node && node.innerHTML) ? node.innerHTML : `Error: Element with ${selector} not found`;
}
render() {
const selector = this.props.asyncLoading;
const html = this.getExistingHtml(selector);
return <div dangerouslySetInnerHTML={{__html: html}} />;
}
}
const DeferredComponent = asyncComponent({
resolve: () => import('path/to/header' /* webpackChunkName:"deferred" */),
LoadingComponent: SSRAsyncLoadingComponent
});
*Rendering*
<div data-async-loading="header">
<DeferredComponent asyncLoading="[data-async-loading=header]" ... />
</div>
Downside is your are rendering 2x on the client and in dev you get a mismatch error, but you save bandwidth / parse / execute of the bundle which is very significant performance gain for our use case and worth it.
from react-async-component.
I think the problem is react doesn't allow you to skip rendering subtrees and no-one could come up with a hack yet that would skip checksum checking and skip subtree rendering. So if you render in server and if you don't initially serve JS for subcomponents in the client side, you cannot render your App at all. If you do, your server rendered subcomponent would be replaced with a placeholder (such as Loading component) until subcomponent.js is downloaded and executed. If you really want to do it, you cannot stick to having a single root App for your whole application. You must have multiple roots and then you can load/mount them separately.
That won't allow you to have deep incremental component loading with full SSR. However that probably doesn't make much sense anyway.
from react-async-component.
Related Issues (20)
- if more the one same async components are rendered in same page, only one will be rendered
- Chunk rendered in the server is requested in the client again HOT 1
- Need Help : How can I solve "System is not defined" HOT 5
- Error walking your react tree HOT 1
- No-match routes rendered during async loading HOT 1
- Combining with <link rel="prefetch" /> results in loading async components twice
- Upgrade to support react-async-bootstrapper 2
- App component rendered twice because of AsyncComponentProvider wrapper in RU
- Solved : Flashing LoadingComponent and render twice
- getErrors missing after migration to 2.0.0
- When used with react-hot-loader, async component gets stuck on the loader HOT 3
- Async component not rendering on directly open page
- Client error: Failed to resolve asyncComponent on Safari 11.1
- React.Children.only seems to fail on IE11 HOT 1
- Is it possible to load the async'd components from a custom URL? HOT 1
- Two same simultaneously async components HOT 5
- Informing about React.lazy() HOT 2
- Cannot read property 'helmetInstances' of undefined HOT 3
- migrate to New Context API
- Error async-component, state not reloaded after error
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from react-async-component.