Unable to disable <base> tag with NxAppWebpackPlugin

[ericbf]

Current Behavior

If baseHref is not set, or set to undefined, the generated html file has a <base href="/"> in it.

Expected Behavior

If baseHref is not set, or set to undefined, the generated html file should have no <base> tag.

GitHub Repo

https://github.com/ericbf/nx-webpack-base-tag

Steps to Reproduce

1. pnpm install
2. nx webpack:build my-app
3. Check dist/apps/my-app/index.html and see the <base href="/">

Nx Report

Node           : 22.2.0
OS             : darwin-arm64
Native Target  : aarch64-macos
pnpm           : 9.12.1

nx (global)            : 20.0.0
nx                     : 20.4.0-beta.2
@nx/js                 : 20.4.0-beta.2
@nx/jest               : 20.4.0-beta.2
@nx/eslint             : 20.4.0-beta.2
@nx/workspace          : 20.4.0-beta.2
@nx/angular            : 20.4.0-beta.2
@nx/cypress            : 20.4.0-beta.2
@nx/devkit             : 20.4.0-beta.2
@nx/eslint-plugin      : 20.4.0-beta.2
@nx/module-federation  : 20.4.0-beta.2
@nx/react              : 20.4.0-beta.2
@nx/web                : 20.4.0-beta.2
@nx/webpack            : 20.4.0-beta.2
typescript             : 5.7.3
---------------------------------------
Registered Plugins:
@nx/eslint/plugin
@nx/cypress/plugin
@nx/jest/plugin
@nx/webpack/plugin
---------------------------------------
Community plugins:
@ngrx/component-store : 19.0.0
@ngrx/effects         : 19.0.0
@ngrx/entity          : 19.0.0
@ngrx/operators       : 19.0.0
@ngrx/router-store    : 19.0.0
@ngrx/store           : 19.0.0
@ngrx/store-devtools  : 19.0.0

Failure Logs

Package Manager Version

No response

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

This seems to be a regression of a few issues:

• Cannot disable <base /> tag in web application #5079
• Base html tag cannot be disabled #20700
• Maybe others.

Leaving baseHref unset or set to null/undefined should result in no base tag in the resultant html.