@cypress/webpack-preprocessor

A Cypress preprocessor for bundling JavaScript specs via webpack (v5, alpha). Integrates webpack 4.x or 5.x with Cypress's file:preprocessor hook. Requires peer dependencies: @babel/core, @babel/preset-env, babel-loader, webpack. Provides sensible defaults (Babel transpilation, development mode) but allows full customization of webpack options, watchOptions, and additionalEntries. Ships TypeScript types. Not yet stable (alpha); breaking changes may occur. Consider using @cypress/webpack-preprocessor v4 for stable releases.