The doc.url property is exported with relative URLs rather than absolute URLs

Steps to reproduce

• Create a Live Data listing the entries of the Movies application that is installed by default:

{{liveData
  id="pages"
  properties="doc.title,doc.fullName,doc.url"
  source="liveTable"
  sourceParameters="className=Help.Applications.Movies.Code.MoviesClass"
/}}

• Install the Live Data Exporter extension
• Export the Live Data entries using the exporter

Results

The exported CSV contains relative URLs (as shown below) while the Live Data itself displays the absolute URLs as expected.

Exported CSV content:

Meet John Doe,Help.Applications.Movies.Meet John Doe,/xwiki/bin/view/Help/Applications/Movies/Meet%20John%20Doe
Modern Times,Help.Applications.Movies.Modern Times,/xwiki/bin/view/Help/Applications/Movies/Modern%20Times