Describe the bug
I understand node.js was removed from the DocFx package since v2.78. I also understand from the documentation that node.js should only be necessary when generating pdf.

Yet, I set "pdf": false in my config and I still get the exception. (I do indeed not have node.js installed)

To Reproduce
Steps to reproduce the behavior:

1. Part of config:

{
  "build": {
    "globalMetadata": {
      "pdf": false
    }
  }
}

2. dotnet tool run docfx docfx.json

Exception complaing about node.js

Also tried adding pdf: false to my toc, didn't make any difference.

Expected behavior

Docfx generates the html

Context (please complete the following information):

• OS: Windows/docker
• Docfx version: 2.78

Additional context