The PDF export fails after the remote headless Chrome is restarted

Follow these steps to reproduce:

• start headless Chrome and configure the PDF export to use it as per https://extensions.xwiki.org/xwiki/bin/view/Extension/PDF%20Export%20Application/#HHeadlessChromeonLocalhost
• perform a PDF export
• restart the headless Chrome
• try to export again as PDF

The second PDF export fails. It would be nice if XWiki would re-establish the connection to the headless Chrome automatically. Currently you have to go to the PDF Export administration section and change the configuration in order to trigger a reconnection.