JDN The external link added into the SiteUrls.json doesn't produce separate pageobject java class and pageobject.zip is not generated

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The external link added into the SiteUrls.json doesn't produce separate pageobject java class and pageobject.zip is not genenerated

Preconditions:
1 JDN plugin is installed
2 The test page is available https://jdi-testing.github.io/jdi-light/index.html. Target subpages: Home; Contact form; Metals & Colors;
3 The repository https://github.com/jdi-examples/jdn-with-jdi-light is cloned or downloaded locally
4 The valid user is logged to site

Steps to reproduce:
1 Navigate to https://jdi-testing.github.io/jdi-light/index.html and open the Developer console (F12)
2 Select JDN tab
3 Check the button 'Generate several tables'
4 Within menu "Generate" click 'Load urls list'
5 Select cloned JDN folder jdn-with-jdi-light-master\rules
6 Update the ile SiteUrls.json by adding an external link. e.g.
{
"urlsList": [
"https://jdi-testing.github.io/jdi-light/index.html",
"https://jdi-testing.github.io/jdi-light/contacts.html",
"https://jdi-testing.github.io/jdi-light/metals-colors.html",
"https://mail.ru"
]
}

7 Select and open file SiteUrls.json
8 Check 'Generate several tables'
9 Generate page objects

Expected result:

1. The following are generated:
   pageobject.zip
   the four separate Java class for each link
2. The pageObject java class can be downloaded

Actual result:

1. The pageobject.zip file is not genenerated
2. The pageObject java class can not be downloaded