MobileFrontend has documentation that runs using npm run doc that publishes documentation to https://docs.wikimedia.org. It has been failing for a while now.
For some reason this is still using node v6.11.0.
See https://integration.wikimedia.org/ci/job/mwext-npm-doc-publish/1934/console for example failure.
15:29:26 /src/node_modules/jsdoc/lib/jsdoc/fs.js:97 15:29:26 fs.copyFileSync(inFile, path.join(outDir, fileName)); 15:29:26 ^ 15:29:26 15:29:26 TypeError: fs.copyFileSync is not a function 15:29:26 at Object.exports.copyFileSync (/src/node_modules/jsdoc/lib/jsdoc/fs.js:97:8) 15:29:26 at staticFiles.forEach.fileName (/src/node_modules/jsdoc/templates/default/publish.js:506:12)