Steps to reproduce:

• Setup admin SiteAccess to use a separate domain:
  config/packages/ibexa.yaml

  ..
      match:
          # URIElement: 1 <- disable URIElement matching
          Map\Host:
              test-admin.ddev.site: admin
              test.ddev.site: site
  ..
  

• login and go to https://test-admin.ddev.site/view/content/52/full/1/2
• Set Site Context to site:
  
• Hover on Content Tree Item 'Ibexa Digital Experience Platform'

Expected Result:

Result:
No Content is shown.
Developer tools show console error:

ibexa-site-context-location-preview-js.js:25 Uncaught TypeError: Cannot read properties of null (reading '1')
    at getLocationIdFromHref (ibexa-site-context-location-preview-js.js:25:58)
    at ibexa-site-context-location-preview-js.js:99:26