Avoid async import if the component is previously loaded (#4127)
parent
f66270fb73
commit
05833fc24a
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@ -26,6 +26,8 @@ class Bundle extends React.Component {
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onFetchFail: noop,
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}
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static cache = {}
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state = {
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mod: undefined,
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forceRender: false,
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@ -58,8 +60,17 @@ class Bundle extends React.Component {
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this.timeout = setTimeout(() => this.setState({ forceRender: true }), renderDelay);
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}
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if (Bundle.cache[fetchComponent.name]) {
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const mod = Bundle.cache[fetchComponent.name];
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this.setState({ mod: mod.default });
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onFetchSuccess();
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return Promise.resolve();
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}
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return fetchComponent()
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.then((mod) => {
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Bundle.cache[fetchComponent.name] = mod;
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this.setState({ mod: mod.default });
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onFetchSuccess();
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})
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