I found place with issue
It HandleInternalLink processor
this line return absolute path
args.Url = LinkManager.GetItemUrl(new ItemUtilExt().GetItem(result.ItemId), defaultUrlOptions);
despite the fact that defaultUrlOptions.AlwaysIncludeServerUrl = false;
For testing I copied this code in rendering which placed on the home page and result was correct relative path instead absolute
Any ideas how I can fix it in the HandleInternalLink processor?