Updating 4.13.0 -> 4.13.1 causes "Module not found: Error: Can't resolve 'util'" when building

[AuroraLS3]

Q&A (please complete the following information)

• OS: ubuntu (Github actions)
• Browser: none
• Version: -
• Method of installation: npm (yarn)
• Swagger-UI version: 4.13.1
• Swagger/OpenAPI version: -

Content & configuration

Swagger-UI configuration options:

        SwaggerUI({
            dom_id: "#swagger-ui",
            url: baseAddress + "/docs/swagger.json"
        });

Describe the bug you're encountering

Build is failing if swagger is updated by dependabot plan-player-analytics/Plan#2527 (builds using 4.13.0 successful)

yarn run v1.22.19
$ react-scripts build
Creating an optimized production build...
Failed to compile.

Module not found: Error: Can't resolve 'util' in '/home/runner/work/Plan/Plan/Plan/react/dashboard/node_modules/swagger-ui/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }

error Command failed with exit code 1.

To reproduce...

Steps to reproduce the behavior: (speculative)

1. Create a react app
2. Add swagger 4.13.1 as dependency
3. Build
4. See error

Expected behavior

No errors during npm build

Additional context or thoughts

• I'm unsure if react app builds with older version of webpack, or if the version 4.13.1 changed webpack version to be higher
• Bump swagger-ui from 4.13.0 to 4.13.1 in /Plan/react/dashboard plan-player-analytics/Plan#2527

[char0n]

Additional problem with 4.13.1 is that logical nullish assignment (??=) is no longer transformed by babel which disqualifies testing SwaggerUI in Node.js@14.

[char0n]

Fixes provided in #8137

[char0n]

Regression with util fixed by not installing util in our dependency tree

Regression with logical nullish assignment fixed by always using transformation provided by @babel/plugin-proposal-logical-assignment-operators as part of running babel preset env tranformations.

[char0n]

Released as https://github.com/swagger-api/swagger-ui/releases/tag/v4.13.2

[AuroraLS3]

Thank you for the quick fix - I'll report back tomorrow when dependabot updates again.

[char0n]

@AuroraLS3 your CI is green on 4.13.2 - plan-player-analytics/Plan#2529

[AuroraLS3]

Yep indeed it is, thanks!