[Eugene (OEvgeny)]

webpack 5 cannot bundle Web Chat with React 19: react-film 4.0.0 imports render from react-dom.

Changelog Entry

Changed

• Bumped to react-film@4.0.1-main.202610290630.8324311 for webpack 5 with React 19, related to #5552, in PR #5980, by @OEvgeny

Description

React 19 removed render, and webpack 5 fails on the missing export. react-film's main build reads it inside its retrofit() only (spyip/react-film#110), which Web Chat does not call.

Design

• Pinned to the main build, like react-scroll-to-bottom, until 4.0.1 is released.
• No test here: Check that esbuild, Vite and webpack 4/5 apps can bundle and render Web Chat #5977's bundler job covers webpack 5 × React 19 once its exclusion is removed.

Specific Changes

• component/package.json: react-film@4.0.1-main.202610290630.8324311, pinned to main

• package-lock.json: only react-film

• I have added tests and executed them locally

• I have added .changelog/<PR#>-<slug>.md

• I have updated documentation

Review Checklist

This section is for contributors to review your work.

• Accessibility reviewed (tab order, content readability, alt text, color contrast)
• Browser and platform compatibilities reviewed
• CSS styles reviewed (minimal rules, no z-index)
• Documents reviewed (docs, samples, live demo)
• Internationalization reviewed (strings, unit formatting)
• package.json and package-lock.json reviewed
• Security reviewed (no data URIs, check for nonce leak)
• Tests reviewed (coverage, legitimacy)

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