[[pdoCrumbs? &tplWrapper=`crumbWrapperTpl` &tplCurrent=`crumbCurrentTpl` &tpl=`crumbTpl`]]
{"@type": "ListItem", "position": 1, "item": {"@id": "[[+link]]"}}
<script type="application/ld+json"> [[+output]] </script>
<script type="application/ld+json">
{"@type": "ListItem", "position": 1, "item": {"@id": "google-breadcrumbs.html"}}
{"@type": "ListItem", "position": 1, "item": {"@id": "google-breadcrumbs/test1.html"}}
{"@type": "ListItem", "position": 1, "item": {"@id": "google-breadcrumbs/test1.html/test2.html"}}
</script>
<script type="application/ld+json">
{"@type": "ListItem", "position": 3, "item": {"@id": "google-breadcrumbs.html"}}
{"@type": "ListItem", "position": 2, "item": {"@id": "google-breadcrumbs/test1.html"}}
{"@type": "ListItem", "position": 1, "item": {"@id": "google-breadcrumbs/test1.html/test2.html"}}
</script>
This question has been answered by lkfranklin. See the first response.
<script type="application/ld+json">
{"@type": "ListItem", "position": 1, "item": {"@id": "google-breadcrumbs.html"}}
{"@type": "ListItem", "position": 2, "item": {"@id": "google-breadcrumbs/test1.html"}}
{"@type": "ListItem", "position": 3, "item": {"@id": "google-breadcrumbs/test1.html/test2.html"}}
</script>{"@type": "ListItem", "position": [[+idx]], "item": {"@id": "[[+link]]"}}