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2021-03-23のJS: Node.js 15.12.0(fs.promisesのパフォーマンス改善)、strict CSP、CSS Auditing Tools #846
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…ict-csp-css-auditing-tools.md
…ict-csp-css-auditing-tools.md
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Node.js 15.12.0がリリースされました。
fs
のreadFile
/writeFile
に対してPromise版のfs.promises
のreadFile
/writeFile
が遅くなるというIssueがあります。Node.js 15.12.0ではこのパフォーマンス問題の改善が含まれています。
その他には
crypto.create{Public,Private}Key
がJWKオブジェクトをサポート、AbortSignal.abort()
の実装、worker
モジュールに{get,set}EnvironmentData
が追加されています。Mitigate cross-site scripting (XSS) with a strict Content Security Policy (CSP)という記事では、Content Security Policy (CSP)を使ったXSSの影響を軽減するアプローチについて書かれています。
CSPには、特定のURLを許可リスト方式で扱う設定がありますが、許可したURLにJSONPなどのエンドポイントがあるとバイパスされる問題が知られています。
そのため、nonceベースかhashベースのstrictなCSP設定をすることで、CSPがバイパスされる可能性は低くなります。
この記事では、nonceベースとhashベースのstrict CSP設定をどのようにするかについて書かれています。
CSS Auditing Tools — Smashing Magazineという記事では、CSSのAuditツールについてまとめられています。
それぞれのツールの紹介やどのような項目を調べられるのかについてまとめられています。