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@hi-ogawa
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@hi-ogawa hi-ogawa commented May 5, 2025

Summary

nonce option is mentioned in ReactDOM.preloadModule documentation https://react.dev/reference/react-dom/preloadModule, but I found that it has no effect. This looks like an minor oversight and this is a one liner fix PR.

How did you test this change?

Added a new test "ReactDOMFloat > preloadModule > supports nonce" in packages/react-dom/src/__tests__/ReactDOMFloat-test.js, which is a preloadModule equivalent of an existing test "ReactDOMFloat > preload > supports nonce".

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eps1lon commented May 5, 2025

@hi-ogawa Thanks for filing this. Could you sign the CLA so that we can merge it if the PR is accepted. I pinged @gnoff for review who knows the most about these APIs.

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Comparing: 0ca8420...8db0989

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name +/- Base Current +/- gzip Base gzip Current gzip
oss-stable/react-dom/cjs/react-dom.production.js +1.12% 6.68 kB 6.76 kB +0.27% 1.83 kB 1.83 kB
oss-stable/react-dom/cjs/react-dom-client.production.js = 528.27 kB 528.27 kB = 93.14 kB 93.14 kB
oss-experimental/react-dom/cjs/react-dom.production.js +1.12% 6.69 kB 6.76 kB +0.22% 1.83 kB 1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js = 633.90 kB 633.90 kB = 111.33 kB 111.33 kB
facebook-www/ReactDOM-prod.classic.js +0.01% 671.68 kB 671.76 kB = 117.77 kB 117.78 kB
facebook-www/ReactDOM-prod.modern.js +0.01% 661.96 kB 662.04 kB = 116.21 kB 116.21 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show
Name +/- Base Current +/- gzip Base gzip Current gzip
oss-stable-semver/react-dom/cjs/react-dom.react-server.production.js +1.54% 4.88 kB 4.95 kB +0.24% 1.26 kB 1.26 kB
oss-stable/react-dom/cjs/react-dom.react-server.production.js +1.53% 4.90 kB 4.98 kB +0.31% 1.28 kB 1.29 kB
oss-experimental/react-dom/cjs/react-dom.react-server.production.js +1.53% 4.91 kB 4.98 kB +0.31% 1.29 kB 1.29 kB
facebook-react-native/react-dom/cjs/ReactDOM-prod.js +1.16% 6.48 kB 6.55 kB +0.33% 1.81 kB 1.81 kB
facebook-react-native/react-dom/cjs/ReactDOM-profiling.js +1.16% 6.48 kB 6.55 kB +0.33% 1.81 kB 1.81 kB
oss-stable-semver/react-dom/cjs/react-dom.production.js +1.13% 6.66 kB 6.73 kB +0.11% 1.80 kB 1.81 kB
oss-stable/react-dom/cjs/react-dom.production.js +1.12% 6.68 kB 6.76 kB +0.27% 1.83 kB 1.83 kB
oss-experimental/react-dom/cjs/react-dom.production.js +1.12% 6.69 kB 6.76 kB +0.22% 1.83 kB 1.83 kB
oss-stable-semver/react-dom/cjs/react-dom.react-server.development.js +0.57% 14.21 kB 14.29 kB +0.11% 2.82 kB 2.83 kB
oss-stable/react-dom/cjs/react-dom.react-server.development.js +0.57% 14.24 kB 14.32 kB +0.11% 2.85 kB 2.85 kB
oss-experimental/react-dom/cjs/react-dom.react-server.development.js +0.57% 14.24 kB 14.32 kB +0.11% 2.86 kB 2.86 kB
facebook-react-native/react-dom/cjs/ReactDOM-dev.js +0.48% 16.74 kB 16.82 kB +0.06% 3.60 kB 3.61 kB
oss-stable-semver/react-dom/cjs/react-dom.development.js +0.46% 17.67 kB 17.75 kB +0.10% 3.82 kB 3.82 kB
oss-stable/react-dom/cjs/react-dom.development.js +0.46% 17.70 kB 17.78 kB +0.10% 3.85 kB 3.85 kB
oss-experimental/react-dom/cjs/react-dom.development.js +0.46% 17.70 kB 17.79 kB +0.10% 3.85 kB 3.85 kB

Generated by 🚫 dangerJS against 8db0989

@hi-ogawa
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hi-ogawa commented May 5, 2025

Thanks for taking a look and assigning reviewers! I'm now checking CLA with my employer and it shouldn't take long. Thanks for the patience 🙏

@brijeshb42
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Related PR for nonce on style tags - #32461

@hi-ogawa
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hi-ogawa commented May 10, 2025

Hmm, I realized that using nonce for non-inline script might not make sense in general 🤔 I wasn't really familiar with CSP, but the rational seems to be people use script-src 'self' or domain to whitelist allowed script url and nonce is specifically for inline scripts (or styles).

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github-actions bot commented Aug 8, 2025

This pull request has been automatically marked as stale. If this pull request is still relevant, please leave any comment (for example, "bump"), and we'll keep it open. We are sorry that we haven't been able to prioritize reviewing it yet. Your contribution is very much appreciated.

@github-actions github-actions bot added the Resolution: Stale Automatically closed due to inactivity label Aug 8, 2025
@hi-ogawa
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hi-ogawa commented Aug 8, 2025

Closing since nonce in non-inline module script is not intended to be used in most cases.

@hi-ogawa hi-ogawa closed this Aug 8, 2025
@hi-ogawa hi-ogawa deleted the fix-preloadModule-nonce branch August 8, 2025 08:20
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5 participants