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{#- Theme Switcher Button to toggle between dark/light #}
{%- set integrity = config.extra.integrity | default(value=true) -%}
{%- if config.extra.offline %}{% set integrity = false %}{% endif %}
{%- if config.extra.js_switcher | default(value=true) %}
{%- set js_theme="js/theme.min.js" %}
{%- if config.extra.js_switcher_default %}
{%- if config.extra.js_switcher_default == "light" %}{% set js_theme="js/theme_light.min.js" %}{% endif %}
{%- endif %}
<script src="{{ get_url(path=js_theme , trailing_slash=false) | safe }}"{%- if integrity %} integrity="sha384-{{ get_hash(path=js_theme, sha_type=384, base64=true) | safe }}"{%- endif %}></script>
{%- endif %}
{#- Style Sheets #}
{%- set stylesheets=config.extra.stylesheets | default(value=[ "abridge.css" ]) -%}
{%- if stylesheets %}{%- for i in stylesheets %}
<link rel="stylesheet" href="{{ get_url(path=i , trailing_slash=false, cachebust=true) | safe }}" />
{%- endfor %}{%- endif %}
{#- meta tags #}
<meta charset="utf-8" />
<meta http-equiv="x-ua-compatible" content="ie=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="base" content="{{ config.base_url | safe }}" />
<meta name="HandheldFriendly" content="True" />
<meta name="mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="default" />
{#- Security: CSP, referrer #}
{%- if config.extra.security_header_referrer %}
<meta name="referrer" content="{{ config.extra.security_header_referrer | safe }}" />
{%- endif %}
{%- if config.extra.security_header_csp %}
<meta http-equiv="Content-Security-Policy" content="{{ config.extra.security_header_csp | safe }}" />
{%- endif %}
{#- Favicons #}
{%- if config.extra.favicon_theme_color %}
<meta name="theme-color" content="{{ config.extra.favicon_theme_color }}" />
{%- endif %}
{%- if config.extra.favicon_ms_color %}
<meta name="msapplication-TileColor" content="{{ config.extra.favicon_ms_color }}" />
{%- endif %}
{%- if config.extra.webmanifest %}
<link rel="manifest" href="{{ get_url(path=config.extra.webmanifest, trailing_slash=false) | safe }}" />
{%- endif %}
{%- if config.extra.favicon_mask and config.extra.favicon_mask_color %}
<link rel="mask-icon" href="{{ get_url(path=config.extra.favicon_mask, trailing_slash=false) | safe }}" color="{{ config.extra.favicon_mask_color }}" />
{%- endif %}
{%- if config.extra.favicon_svg %}
<link rel="icon" type="image/svg+xml" href="{{ get_url(path=config.extra.favicon_svg, trailing_slash=false) | safe }}" />
{%- endif %}
{%- if config.extra.favicon180 %}
<link rel="apple-touch-icon" sizes="180x180" href="{{ get_url(path=config.extra.favicon180, trailing_slash=false) | safe }}" />
{%- endif %}
{%- if config.extra.favicon32 %}
<link rel="icon" type="image/png" sizes="32x32" href="{{ get_url(path=config.extra.favicon32, trailing_slash=false) | safe }}" />
{%- endif %}
{%- if config.extra.favicon16 %}
<link rel="icon" type="image/png" sizes="16x16" href="{{ get_url(path=config.extra.favicon16, trailing_slash=false) | safe }}" />
{%- endif %}
{#- Style Sheets Preload #}
{%- set integrity = config.extra.integrity | default(value=true) -%}
{%- if config.extra.offline %}{% set integrity = false %}{% endif %}
{%- if config.extra.fonts %}{%- for i in config.extra.fonts %}
{%- if i.url is matching("^http[s]?://") %}
<link rel="preload" as="style" class="preStyle" href="{{ i.url | safe }}" crossorigin="anonymous" />
{%- else %}
<link rel="preload" as="font" href="{{ get_url(path=i.url, trailing_slash=false) | safe }}" type="font/woff2" />
{%- endif %}
{%- endfor %}{%- endif %}
{%- if config.extra.fontawesome %}
<link rel="preload" as="style" class="preStyle" href="{{ config.extra.fontawesome | safe }}" crossorigin="anonymous" />
{%- endif %}
{%- if config.extra.math or page.extra.math %}
{%- set katex_css=config.extra.katex_css | default(value="katex.min.css") -%}
{%- if katex_css %}{%- if katex_css is matching("^http[s]?://") %}
<link rel="preload" as="style" class="preStyle" href="{{ katex_css | safe }}"{%- if integrity and config.extra.katex_css_integrity %} integrity="{{ config.extra.katex_css_integrity | safe }}"{%- endif %} crossorigin="anonymous" />
{%- else %}
<link rel="preload" as="style" class="preStyle" href="{{ get_url(path=katex_css, trailing_slash=false) }}"{%- if integrity %} integrity="sha384-{{ get_hash(path=katex_css, sha_type=384, base64=true) | safe }}"{%- endif %} />
{%- endif %}{%- endif %}
{%- endif %}
{#- Rss / Atom Feed #}
{%- if config.generate_feeds %}
{%- for feed in config.feed_filenames %}
{%- if feed is containing('atom') %}
<link rel="alternate" type="application/atom+xml" title="{{ config.title }} Atom Feed" href="{{ get_url(path=feed, trailing_slash=false, lang=lang) | safe }}" />
{%- endif %}
{%- if feed is containing('rss') %}
<link rel="alternate" type="application/rss+xml" title="{{ config.title }} RSS Feed" href="{{ get_url(path=feed, trailing_slash=false, lang=lang) | safe }}" />
{%- endif %}
{%- endfor %}
{%- endif %}
{#- End of head partial -#}
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