Twig template adds JSON-LD duplicate - twig

Question

I've got this homepage and when I execute my template, the JSON-LD script is duplicated inside my page (1 in the HEAD and 1 in the middle of the page).
I just don't understand why this script is running another time in the middle of the page...
So here is my code: The header, where I introduced the JSON-LD script and the the bodyContent block where you can find the page content.
{% block header %}
{% block head_javascript %}
<script type="application/ld+json">
{
"#context": "http://schema.org",
"#type": "WebSite",
"url": "",
"description": "",
"name": ""
}
</script>
{% endblock%}
{% endblock %}
{% block bodyContent %}
{# TAG | SELECTION #}
<div>
<h2> {{ 'title' }} </h2>
<p> {{ 'desc' }} </p>
</div>
<div>
<div>
<h1>{{ 'create.title' }}</h1>
<p>
{{ 'create.desc' }}
</p>
<div>
<div>
{% set texte %}{{ 'create.step.one' }}{% endset %}
{% set svg %}svg:cursor-mkp.svg.twig{% endset %}
{% set number %}1{% endset %}
{{ include(':step.html.twig') }}
</div>
<div>
{% set texte %}{{ 'create.step.two' }}{% endset %}
{% set svg %}svg:mkp.svg.twig{% endset %}
{% set number %}2{% endset %}
{{ include('idea-step.html.twig') }}
</div>
</div>
<a href="{{path('path.mkp')}}">
<button>{{ 'create.button' }}</button>
</a>
</div>
</div>
{% endblock %}
I've found this error with the Google Structured Data Testing Tool. Indeed, I've seen that there was the same structured data twice.

Answer 1

May this help someone :
From my controller, my header block is generating more code than I coulded see and I was not able to check this before I just move my jsonld script out of the header block.
Now it's working well and I do not have 2 times the same snippet.
{% block header %}
{% endblock %}
{% block head_javascript %}
<script type="application/ld+json">
{
"#context": "http://schema.org",
"#type": "WebSite",
"url": "",
"description": "",
"name": ""
}
</script>
{% endblock%}