Unable to Set Node.js Document Root

[amaljunior002]

Hello,

I'm encountering an issue configuring my Node.js application in Plesk on HelioHost.

Current configuration

• Server: Johnny

• Application Root: /nodeapp

• Document Root: /httpdocs (current)

• Startup File: app.js

Directory structure

/
├── httpdocs/
└── nodeapp/
    ├── app.js
    ├── package.json
    └── public/

The public directory exists inside the application root and has standard permissions (755).

Issue

I'm trying to change the Document Root from:

/httpdocs

to:

/nodeapp/public

Plesk allows me to browse to and select the public directory, but when I click OK or Save, it fails with the following error:

Unable to change document root: Permission denied.

Additional observations

• If I set the Application Root to /, the configuration is accepted and /httpdocs remains the document root.

• If I set the Application Root to /nodeapp, Plesk recognizes the application correctly (it detects app.js and package.json), but changing the document root to /nodeapp/public always results in the "Permission denied" error.

• The public directory is a normal directory (not a symbolic link) and is visible in Plesk's File Manager.

• The application files are owned by my hosting account, and the directory permissions appear to be correct.

This appears to be a server-side Plesk or virtual host configuration issue rather than a filesystem permission issue.

Could someone please check whether there is a restriction or configuration problem preventing my account from setting the document root to a subdirectory of the application root?

Thank you.