build(npm): allowlist + enforce dependency install scripts - #45569
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caugner wants to merge 3 commits into
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build(npm): allowlist + enforce dependency install scripts#45569caugner wants to merge 3 commits into
caugner wants to merge 3 commits into
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npm 12 no longer runs `preinstall`/`install`/`postinstall` from dependencies unless the root `package.json` lists them in `allowScripts`. `npm ci` still succeeds, so a missing entry only surfaces later as a missing binary. Generated with `npm approve-scripts --all --no-allow-scripts-pin`, so the entries are name-only and keep matching after a dependency bump.
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Turns an uncovered dependency install script into a hard `npm ci` error instead of a silently skipped script. npm 11.16+ already honors this option, so it takes effect on the current toolchain, not only on npm 12.
Node.js 24.20.0 bundles npm 11.19.0, the first bundled npm version that understands `allowScripts` and `strict-allow-scripts`, so CI and local installs run with an npm that enforces the install-script allowlist.
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September 8, 2026 16:33
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Description
Add an
allowScriptsallowlist for the dependencies with install scripts, enablestrict-allow-scripts, and bump the Node.js and npm pins.Motivation
npm 12 no longer runs dependency
preinstall/install/postinstallscripts unless the rootpackage.jsonallowlists them, andnpm cistill exits 0, so the failure only shows up later as a missing binary. Without the allowlist,@mdn/rari,gifsicle,mozjpegandpngquant-binnever fetch their binaries andlefthooknever registers its git hooks.Additional details
--no-allow-scripts-pin), so Dependabot bumps do not need re-approval commits, at the cost of trusting future versions of the listed packages.strict-allow-scripts=truein.npmrcturns an uncovered install script into a hardnpm cierror (honored by npm 11.16+, not only npm 12)..nvmrcbumped to v24.20.0 andpackageManagerto npm 11.19.0; the previous pins (Node 24.14.0, npm 11.9.0) predateallowScriptssupport.npx @mdn/rariandnpx @mdn/fredinpr-test.ymlresolve from this repo'snode_modules, so the allowlist covers them.npm ci --strict-allow-scriptspasses on npm 12.0.2 and 11.19.0;npm approve-scripts --allow-scripts-pendingreports nothing.Related issues and pull requests
Part of mdn/fred#1868.
Fixes mdn/fred#1867.