Is it possible to externalize json-ld and include it in an html document like this:
<script type="text/javascript" src="http://www.example.com/data123.jsonld"></script>
There doesn't seem to be any documentation about this online....
You can't do that. You should get the json with an AJAX request.
You can do it easy with jQuery
JS
$(function(){
$.getJSON("data123.jsonld", function(data) {
$('.json').text(data);
});
});
HTML
<div class="json"></div>
If your json file is not in your file system (cross domain) you should try something like this.