Avoid async import if the component is previously loaded (#4127)

main
unarist 7 years ago committed by Eugen Rochko
parent ce3a371eee
commit caf938562e

@ -26,6 +26,8 @@ class Bundle extends React.Component {
onFetchFail: noop,
}
static cache = {}
state = {
mod: undefined,
forceRender: false,
@ -58,8 +60,17 @@ class Bundle extends React.Component {
this.timeout = setTimeout(() => this.setState({ forceRender: true }), renderDelay);
}
if (Bundle.cache[fetchComponent.name]) {
const mod = Bundle.cache[fetchComponent.name];
this.setState({ mod: mod.default });
onFetchSuccess();
return Promise.resolve();
}
return fetchComponent()
.then((mod) => {
Bundle.cache[fetchComponent.name] = mod;
this.setState({ mod: mod.default });
onFetchSuccess();
})

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