{# See: http://brianflove.com/2016/07/21/preloading-with-critical-path-css/ #}
{# Author: Norman Rusch #}

{% if critical_css %}
	{% block critical_css %}
		<style type="text/css">{% block critical_css_inline %}{{ critical_css|safe }}{% endblock %}</style>
	{% endblock %}
	{% block preload %}
		<link rel="preload" as="style" type="text/css" href="{{ css_path }}" onload="this.onload=null;this.rel='stylesheet'" />
	{% endblock %}
	{% block noscript %}
		<noscript><link rel="stylesheet" type="text/css" href="{{ css_path }}" /></noscript>
	{% endblock %}
	{% block script %}
		<script type="text/jscript">
			{% block script_inline %}
			{# loadCSS rel=preload polyfill. [c]2017 Filament Group, Inc. MIT License #}
			!function(n){"use strict";n.loadCSS||(n.loadCSS=function(){});var o=loadCSS.relpreload={};if(o.support=function(){var e;try{e=n.document.createElement("link").relList.supports("preload")}catch(t){e=!1}return function(){return e}}(),o.bindMediaToggle=function(t){var e=t.media||"all";function a(){t.addEventListener?t.removeEventListener("load",a):t.attachEvent&&t.detachEvent("onload",a),t.setAttribute("onload",null),t.media=e}t.addEventListener?t.addEventListener("load",a):t.attachEvent&&t.attachEvent("onload",a),setTimeout(function(){t.rel="stylesheet",t.media="only x"}),setTimeout(a,3e3)},o.poly=function(){if(!o.support())for(var t=n.document.getElementsByTagName("link"),e=0;e<t.length;e++){var a=t[e];"preload"!==a.rel||"style"!==a.getAttribute("as")||a.getAttribute("data-loadcss")||(a.setAttribute("data-loadcss",!0),o.bindMediaToggle(a))}},!o.support()){o.poly();var t=n.setInterval(o.poly,500);n.addEventListener?n.addEventListener("load",function(){o.poly(),n.clearInterval(t)}):n.attachEvent&&n.attachEvent("onload",function(){o.poly(),n.clearInterval(t)})}"undefined"!=typeof exports?exports.loadCSS=loadCSS:n.loadCSS=loadCSS}("undefined"!=typeof global?global:this);
			{% endblock %}
		</script>
	{% endblock %}
{% else %}
	{% block stylesheet %}
		<link rel="stylesheet" type="text/css" href="{{ css_path }}" />
	{% endblock %}
{% endif %}