diff --git a/.babelrc b/.babelrc index 0e6b30e4..d4036486 100644 --- a/.babelrc +++ b/.babelrc @@ -1,6 +1,6 @@ { "presets": [ - ["@babel/preset-env", { "useBuiltIns": "entry", "corejs": { "version": 3, "proposals": true } }], + ["@babel/preset-env", { "useBuiltIns": false }], "@babel/preset-typescript" ], "plugins": [ diff --git a/DEPENDENCIES.md b/DEPENDENCIES.md index 711ba0f8..a097cd73 100644 --- a/DEPENDENCIES.md +++ b/DEPENDENCIES.md @@ -61,15 +61,6 @@ These packages contain code that is **imported by the source code** and **bundle - **Files**: - `src/input/input_stream/input_stream.ts` - `getPixels()` for image loading -### Polyfills (Deprecated) - -- **`@babel/polyfill`** (^7.12.1) - - **Status**: ⚠️ **DEPRECATED** by Babel team - - **Purpose**: Legacy polyfill for ES6+ features - - **Current Usage**: Not directly imported in source code - - **Recommendation**: Should be removed in favor of `core-js` + `regenerator-runtime` or Babel's automatic polyfill injection - - **Migration Path**: Use `@babel/preset-env` with `useBuiltIns: 'usage'` and explicit `core-js@3` - --- ## Build & Development Tools @@ -131,7 +122,6 @@ These packages are **only used during build/development** and are **not bundled ### Utilities -- **`core-js`** (^3.46.0) - Modern JavaScript polyfills (used by Babel) - **`cross-env`** (^10.1.0) - Cross-platform environment variable setting --- @@ -222,9 +212,8 @@ These are configured in `.ncurc.json` to prevent accidental upgrades via `npm-ch ### Known Issues -1. **`@babel/polyfill` is deprecated** - Should migrate to `core-js@3` + `regenerator-runtime` -2. **Old `mocha` version** - v5.2.0 is from 2018, may have unpatched vulnerabilities -3. **Webpack 4** - No longer receives updates, consider upgrading to Webpack 5 +1. **Old `mocha` version** - v5.2.0 is from 2018, may have unpatched vulnerabilities +2. **Webpack 4** - No longer receives updates, consider upgrading to Webpack 5 ### Monitoring @@ -256,7 +245,11 @@ A: `optionalDependencies` are packages that enhance functionality if available b **Q: Can I remove `@babel/polyfill`?** -A: Yes, but carefully. It's deprecated and not directly imported anymore. Remove it from `package.json` and verify that `@babel/preset-env` is configured to polyfill features automatically via `core-js@3`. Test thoroughly in older browsers (IE11, older Safari) after removal. +A: **It has been removed.** Investigation in November 2025 confirmed that `@babel/polyfill` was never actually imported or used in the codebase - it was a historical dependency that had no effect. The `@babel/preset-env` configuration with `useBuiltIns: "entry"` requires explicit imports of `core-js` at entry points, but no such imports existed. The `@babel/plugin-transform-runtime` handles async/await via `@babel/runtime`, which is bundled automatically. Removal has no impact on bundle size or functionality. + +**Q: Why was `core-js` removed?** + +A: `core-js` was removed along with `@babel/polyfill` because it was never actually used. The Babel configuration with `useBuiltIns: "entry"` only injects polyfills when you explicitly import `core-js/stable` at entry points - no such imports existed in the codebase. Modern browsers (targeted via "last 2 versions" in webpack config) support ES6+ APIs natively (Promise, Array.includes, Object.entries, etc.), so polyfills aren't needed. The `@babel/plugin-transform-runtime` handles async/await syntax via `@babel/runtime`. **Q: Why can't I upgrade `chai` to version 5 or 6?** @@ -283,4 +276,4 @@ This document was created in November 2025 following the TypeScript 5.9.3 upgrad - Security vulnerabilities are discovered and patched - Build tooling changes significantly -Last updated: 2025-11-22 +Last updated: 2025-11-26 diff --git a/package-lock.json b/package-lock.json index 330b1ed1..a7fac776 100644 --- a/package-lock.json +++ b/package-lock.json @@ -15,7 +15,6 @@ "@babel/plugin-proposal-object-rest-spread": "^7.20.7", "@babel/plugin-proposal-optional-chaining": "^7.21.0", "@babel/plugin-transform-runtime": "^7.28.5", - "@babel/polyfill": "^7.12.1", "@babel/preset-env": "^7.28.5", "@babel/preset-typescript": "^7.28.5", "@babel/runtime": "^7.28.4", @@ -34,7 +33,6 @@ "babel-plugin-add-module-exports": "^1.0.4", "babel-plugin-istanbul": "^7.0.1", "chai": "^4.3.10", - "core-js": "^3.46.0", "cross-env": "^10.1.0", "cypress": "^13.17.0", "eslint": "^8.57.1", @@ -107,7 +105,6 @@ "integrity": "sha512-e7jT4DxYvIDLk1ZHmU/m/mB19rex9sv0c2ftBtjSBv+kVM/902eh0fINUzD7UwLLNR+jU585GxUJ8/EBfAM5fw==", "dev": true, "license": "MIT", - "peer": true, "dependencies": { "@babel/code-frame": "^7.27.1", "@babel/generator": "^7.28.5", @@ -1653,32 +1650,12 @@ "@babel/core": "^7.0.0" } }, - "node_modules/@babel/polyfill": { - "version": "7.12.1", - "resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.12.1.tgz", - "integrity": "sha512-X0pi0V6gxLi6lFZpGmeNa4zxtwEmCs42isWLNjZZDE0Y8yVfgu0T2OAHlzBbdYlqbW/YXVvoBHpATEM+goCj8g==", - "deprecated": "🚨 This package has been deprecated in favor of separate inclusion of a polyfill and regenerator-runtime (when needed). See the @babel/polyfill docs (https://babeljs.io/docs/en/babel-polyfill) for more information.", - "dev": true, - "dependencies": { - "core-js": "^2.6.5", - "regenerator-runtime": "^0.13.4" - } - }, - "node_modules/@babel/polyfill/node_modules/core-js": { - "version": "2.6.11", - "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.11.tgz", - "integrity": "sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg==", - "deprecated": "core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js.", - "dev": true, - "hasInstallScript": true - }, "node_modules/@babel/preset-env": { "version": "7.28.5", "resolved": "https://registry.npmjs.org/@babel/preset-env/-/preset-env-7.28.5.tgz", "integrity": "sha512-S36mOoi1Sb6Fz98fBfE+UZSpYw5mJm0NUHtIKrOuNcqeFauy1J6dIvXm2KRVKobOSaGq4t/hBXdN4HGU3wL9Wg==", "dev": true, "license": "MIT", - "peer": true, "dependencies": { "@babel/compat-data": "^7.28.5", "@babel/helper-compilation-targets": "^7.27.2", @@ -3252,7 +3229,6 @@ "integrity": "sha512-GNWcUTRBgIRJD5zj+Tq0fKOJ5XZajIiBroOF0yvj2bSU1WvNdYS/dn9UxwsujGW4JX06dnHyjV2y9rRaybH0iQ==", "dev": true, "license": "MIT", - "peer": true, "dependencies": { "undici-types": "~7.16.0" } @@ -3313,7 +3289,6 @@ "integrity": "sha512-94EQTWZ40mzBc42ATNIBimBEDltSJ9RQHCC8vc/PDbxi4k8dVwUAv4o98dk50M1zB+JGFxp43FP7f8+FP8R6Sw==", "dev": true, "license": "MIT", - "peer": true, "dependencies": { "@eslint-community/regexpp": "^4.10.0", "@typescript-eslint/scope-manager": "7.18.0", @@ -3507,7 +3482,6 @@ "integrity": "sha512-4Z+L8I2OqhZV8qA132M4wNL30ypZGYOQVBfMgxDH/K5UX0PNqTu1c6za9ST5r9+tavvHiTWmBnKzpCJ/GlVFtg==", "dev": true, "license": "BSD-2-Clause", - "peer": true, "dependencies": { "@typescript-eslint/scope-manager": "7.18.0", "@typescript-eslint/types": "7.18.0", @@ -4194,7 +4168,6 @@ "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.10.0.tgz", "integrity": "sha512-F0SAmZ8iUtS//m8DmCTA0jlh6TDKkHQyK6xc6V4KDTyZKA9dnvX9/3sRTVQrWm79glUAZbnmmNcdYwUIHWVybw==", "dev": true, - "peer": true, "bin": { "acorn": "bin/acorn" }, @@ -4239,7 +4212,6 @@ "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz", "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==", "dev": true, - "peer": true, "dependencies": { "fast-deep-equal": "^3.1.1", "fast-json-stable-stringify": "^2.0.0", @@ -4785,7 +4757,6 @@ "resolved": "https://registry.npmjs.org/babel-loader/-/babel-loader-8.3.0.tgz", "integrity": "sha512-H8SvsMF+m9t15HNLMipppzkC+Y2Yq+v3SonZyU70RBL/h1gxPkH08Ot8pEE9Z4Kd+czyWJClmFS8qzIP9OZ04Q==", "dev": true, - "peer": true, "dependencies": { "find-cache-dir": "^3.3.1", "loader-utils": "^2.0.0", @@ -5237,7 +5208,6 @@ } ], "license": "MIT", - "peer": true, "dependencies": { "baseline-browser-mapping": "^2.8.25", "caniuse-lite": "^1.0.30001754", @@ -5978,18 +5948,6 @@ "node": ">=0.10.0" } }, - "node_modules/core-js": { - "version": "3.46.0", - "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.46.0.tgz", - "integrity": "sha512-vDMm9B0xnqqZ8uSBpZ8sNtRtOdmfShrvT6h2TuQGLs0Is+cR0DYbj/KWP6ALVNbWPpqA/qPLoOuppJN07humpA==", - "dev": true, - "hasInstallScript": true, - "license": "MIT", - "funding": { - "type": "opencollective", - "url": "https://opencollective.com/core-js" - } - }, "node_modules/core-js-compat": { "version": "3.46.0", "resolved": "https://registry.npmjs.org/core-js-compat/-/core-js-compat-3.46.0.tgz", @@ -6204,7 +6162,6 @@ "dev": true, "hasInstallScript": true, "license": "MIT", - "peer": true, "dependencies": { "@cypress/request": "^3.0.6", "@cypress/xvfb": "^1.2.4", @@ -7040,7 +6997,6 @@ "deprecated": "This version is no longer supported. Please see https://eslint.org/version-support for other options.", "dev": true, "license": "MIT", - "peer": true, "dependencies": { "@eslint-community/eslint-utils": "^4.2.0", "@eslint-community/regexpp": "^4.6.1", @@ -7352,7 +7308,6 @@ "integrity": "sha512-whOE1HFo/qJDyX4SnXzP4N6zOWn79WhnCUY/iDR0mPfQZO8wcYE4JClzI2oZrhBnnMUCBCHZhO6VQyoBU95mZA==", "dev": true, "license": "MIT", - "peer": true, "dependencies": { "@rtsao/scc": "^1.1.0", "array-includes": "^3.1.9", @@ -12720,12 +12675,6 @@ "node": ">=4" } }, - "node_modules/regenerator-runtime": { - "version": "0.13.10", - "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.10.tgz", - "integrity": "sha512-KepLsg4dU12hryUO7bp/axHAKvwGOCV0sGloQtpagJ12ai+ojVDqkeGSiRX1zlq+kjIMZ1t7gpze+26QqtdGqw==", - "dev": true - }, "node_modules/regex-not": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/regex-not/-/regex-not-1.0.2.tgz", @@ -14425,7 +14374,6 @@ "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==", "dev": true, "license": "MIT", - 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"peer": true, "requires": { "@babel/compat-data": "^7.28.5", "@babel/helper-compilation-targets": "^7.27.2", @@ -17925,7 +17850,6 @@ "resolved": "https://registry.npmjs.org/@types/node/-/node-24.10.1.tgz", "integrity": "sha512-GNWcUTRBgIRJD5zj+Tq0fKOJ5XZajIiBroOF0yvj2bSU1WvNdYS/dn9UxwsujGW4JX06dnHyjV2y9rRaybH0iQ==", "dev": true, - "peer": true, "requires": { "undici-types": "~7.16.0" } @@ -17982,7 +17906,6 @@ "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-7.18.0.tgz", "integrity": "sha512-94EQTWZ40mzBc42ATNIBimBEDltSJ9RQHCC8vc/PDbxi4k8dVwUAv4o98dk50M1zB+JGFxp43FP7f8+FP8R6Sw==", "dev": true, - "peer": true, "requires": { "@eslint-community/regexpp": "^4.10.0", "@typescript-eslint/scope-manager": "7.18.0", @@ -18088,7 +18011,6 @@ "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-7.18.0.tgz", "integrity": "sha512-4Z+L8I2OqhZV8qA132M4wNL30ypZGYOQVBfMgxDH/K5UX0PNqTu1c6za9ST5r9+tavvHiTWmBnKzpCJ/GlVFtg==", "dev": true, - "peer": true, "requires": { "@typescript-eslint/scope-manager": "7.18.0", "@typescript-eslint/types": "7.18.0", @@ -18542,8 +18464,7 @@ "version": "8.10.0", "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.10.0.tgz", "integrity": "sha512-F0SAmZ8iUtS//m8DmCTA0jlh6TDKkHQyK6xc6V4KDTyZKA9dnvX9/3sRTVQrWm79glUAZbnmmNcdYwUIHWVybw==", - "dev": true, - "peer": true + "dev": true }, "acorn-jsx": { "version": "5.3.2", @@ -18575,7 +18496,6 @@ "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz", "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==", "dev": true, - "peer": true, "requires": { "fast-deep-equal": "^3.1.1", "fast-json-stable-stringify": "^2.0.0", @@ -18963,7 +18883,6 @@ "resolved": "https://registry.npmjs.org/babel-loader/-/babel-loader-8.3.0.tgz", "integrity": "sha512-H8SvsMF+m9t15HNLMipppzkC+Y2Yq+v3SonZyU70RBL/h1gxPkH08Ot8pEE9Z4Kd+czyWJClmFS8qzIP9OZ04Q==", "dev": true, - "peer": true, "requires": { "find-cache-dir": "^3.3.1", "loader-utils": "^2.0.0", @@ -19332,7 +19251,6 @@ "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.28.0.tgz", "integrity": "sha512-tbydkR/CxfMwelN0vwdP/pLkDwyAASZ+VfWm4EOwlB6SWhx1sYnWLqo8N5j0rAzPfzfRaxt0mM/4wPU/Su84RQ==", "dev": true, - "peer": true, "requires": { "baseline-browser-mapping": "^2.8.25", "caniuse-lite": "^1.0.30001754", @@ -19907,12 +19825,6 @@ "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=", "dev": true }, - "core-js": { - "version": "3.46.0", - "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.46.0.tgz", - "integrity": "sha512-vDMm9B0xnqqZ8uSBpZ8sNtRtOdmfShrvT6h2TuQGLs0Is+cR0DYbj/KWP6ALVNbWPpqA/qPLoOuppJN07humpA==", - "dev": true - }, "core-js-compat": { "version": "3.46.0", "resolved": "https://registry.npmjs.org/core-js-compat/-/core-js-compat-3.46.0.tgz", @@ -20084,7 +19996,6 @@ "resolved": "https://registry.npmjs.org/cypress/-/cypress-13.17.0.tgz", "integrity": "sha512-5xWkaPurwkIljojFidhw8lFScyxhtiFHl/i/3zov+1Z5CmY4t9tjIdvSXfu82Y3w7wt0uR9KkucbhkVvJZLQSA==", "dev": true, - "peer": true, "requires": { "@cypress/request": "^3.0.6", "@cypress/xvfb": "^1.2.4", @@ -20726,7 +20637,6 @@ "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.57.1.tgz", "integrity": "sha512-ypowyDxpVSYpkXr9WPv2PAZCtNip1Mv5KTW0SCurXv/9iOpcrH9PaqUElksqEB6pChqHGDRCFTyrZlGhnLNGiA==", "dev": true, - "peer": true, "requires": { "@eslint-community/eslint-utils": "^4.2.0", "@eslint-community/regexpp": "^4.6.1", @@ -21165,7 +21075,6 @@ "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.32.0.tgz", "integrity": "sha512-whOE1HFo/qJDyX4SnXzP4N6zOWn79WhnCUY/iDR0mPfQZO8wcYE4JClzI2oZrhBnnMUCBCHZhO6VQyoBU95mZA==", "dev": true, - "peer": true, "requires": { "@rtsao/scc": "^1.1.0", "array-includes": "^3.1.9", @@ -24962,12 +24871,6 @@ "regenerate": "^1.4.2" } }, - "regenerator-runtime": { - "version": "0.13.10", - "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.10.tgz", - "integrity": "sha512-KepLsg4dU12hryUO7bp/axHAKvwGOCV0sGloQtpagJ12ai+ojVDqkeGSiRX1zlq+kjIMZ1t7gpze+26QqtdGqw==", - "dev": true - }, "regex-not": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/regex-not/-/regex-not-1.0.2.tgz", @@ -26235,8 +26138,7 @@ "version": "4.0.3", "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz", "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==", - "dev": true, - "peer": true + "dev": true } } }, @@ -26354,7 +26256,6 @@ "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.9.2.tgz", "integrity": "sha512-f0FFpIdcHgn8zcPSbf1dRevwt047YMnaiJM3u2w2RewrB+fob/zePZcrOyQoLMMO7aBIddLcQIEK5dYjkLnGrQ==", "dev": true, - "peer": true, "requires": { "@cspotcode/source-map-support": "^0.8.0", "@tsconfig/node10": "^1.0.7", @@ -26514,8 +26415,7 @@ "version": "5.9.3", "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz", "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==", - "dev": true, - "peer": true + "dev": true }, "unbox-primitive": { "version": "1.1.0", @@ -26937,7 +26837,6 @@ "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.44.2.tgz", "integrity": "sha512-6KJVGlCxYdISyurpQ0IPTklv+DULv05rs2hseIXer6D7KrUicRDLFb4IUM1S6LUAKypPM/nSiVSuv8jHu1m3/Q==", "dev": true, - "peer": true, "requires": { "@webassemblyjs/ast": "1.9.0", "@webassemblyjs/helper-module-context": "1.9.0", diff --git a/package.json b/package.json index adbf4be1..2caf4075 100644 --- a/package.json +++ b/package.json @@ -15,7 +15,6 @@ "@babel/plugin-proposal-object-rest-spread": "^7.20.7", "@babel/plugin-proposal-optional-chaining": "^7.21.0", "@babel/plugin-transform-runtime": "^7.28.5", - "@babel/polyfill": "^7.12.1", "@babel/preset-env": "^7.28.5", "@babel/preset-typescript": "^7.28.5", "@babel/runtime": "^7.28.4", @@ -34,7 +33,6 @@ "babel-plugin-add-module-exports": "^1.0.4", "babel-plugin-istanbul": "^7.0.1", "chai": "^4.3.10", - "core-js": "^3.46.0", "cross-env": "^10.1.0", "cypress": "^13.17.0", "eslint": "^8.57.1",