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Add referrerPolicy option to ReactDOM.preload() #27096

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merged 2 commits into from Jul 12, 2023
Merged

Add referrerPolicy option to ReactDOM.preload() #27096

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2e38548
Add `referrerPolicy` option to `ReactDOM.preload()`
styfle Jul 11, 2023
24e2703
fix: move into separate test
styfle Jul 12, 2023
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1 change: 1 addition & 0 deletions packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js
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Expand Up @@ -2284,6 +2284,7 @@ function preloadPropsFromPreloadOptions(
fetchPriority: options.fetchPriority,
imageSrcSet: options.imageSrcSet,
imageSizes: options.imageSizes,
referrerPolicy: options.referrerPolicy,
};
}

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1 change: 1 addition & 0 deletions packages/react-dom-bindings/src/server/ReactFizzConfigDOM.js
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Expand Up @@ -5564,6 +5564,7 @@ function preloadPropsFromPreloadOptions(
fetchPriority: options.fetchPriority,
imageSrcSet: options.imageSrcSet,
imageSizes: options.imageSizes,
referrerPolicy: options.referrerPolicy,
};
}

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85 changes: 85 additions & 0 deletions packages/react-dom/src/__tests__/ReactDOMFloat-test.js
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Expand Up @@ -3686,6 +3686,91 @@ body {
);
});

it('should handle referrerPolicy on image preload', async () => {
function App({isClient}) {
ReactDOM.preload('/server', {
as: 'image',
imageSrcSet: '/server',
imageSizes: '100vw',
referrerPolicy: 'no-referrer',
});

if (isClient) {
ReactDOM.preload('/client', {
as: 'image',
imageSrcSet: '/client',
imageSizes: '100vw',
referrerPolicy: 'no-referrer',
});
}

return (
<html>
<body>hello</body>
</html>
);
}

await act(() => {
renderToPipeableStream(<App />).pipe(writable);
});
expect(getMeaningfulChildren(document)).toEqual(
<html>
<head>
<link
rel="preload"
as="image"
imagesrcset="/server"
imagesizes="100vw"
referrerpolicy="no-referrer"
/>
</head>
<body>hello</body>
</html>,
);

const root = ReactDOMClient.hydrateRoot(document, <App />);
await waitForAll([]);
expect(getMeaningfulChildren(document)).toEqual(
<html>
<head>
<link
rel="preload"
as="image"
imagesrcset="/server"
imagesizes="100vw"
referrerpolicy="no-referrer"
/>
</head>
<body>hello</body>
</html>,
);

root.render(<App isClient={true} />);
await waitForAll([]);
expect(getMeaningfulChildren(document)).toEqual(
<html>
<head>
<link
rel="preload"
as="image"
imagesrcset="/server"
imagesizes="100vw"
referrerpolicy="no-referrer"
/>
<link
rel="preload"
as="image"
imagesrcset="/client"
imagesizes="100vw"
referrerpolicy="no-referrer"
/>
</head>
<body>hello</body>
</html>,
);
});

describe('ReactDOM.prefetchDNS(href)', () => {
it('creates a dns-prefetch resource when called', async () => {
function App({url}) {
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1 change: 1 addition & 0 deletions packages/react-dom/src/shared/ReactDOMTypes.js
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Expand Up @@ -18,6 +18,7 @@ export type PreloadOptions = {
fetchPriority?: 'high' | 'low' | 'auto',
imageSrcSet?: string,
imageSizes?: string,
referrerPolicy?: string,
};
export type PreinitOptions = {
as: string,
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