video_embed_field-8.x-2.4/templates/video-embed-iframe.html.twig

{#
/**
 * @file
 * Display an iframe with alterable components.
 */
#}
<iframe{{ attributes }}{% if url is not empty %} src="{{ url }}{% if query is not empty %}?{{ query | url_encode }}{% endif %}{% if fragment is not empty %}#{{ fragment }}{% endif %}"{% endif %}></iframe>