<head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</title> <meta name="description" content="{% if page.excerpt %}{{ page.excerpt | strip_html | strip_newlines | truncate: 160 }}{% else %}{{ site.description }}{% endif %}"> <link href="https://fonts.googleapis.com/css?family=Secular+One|Nunito|Ubuntu+Mono" rel="stylesheet"> <link rel="stylesheet" href="{{ "/css/main.css" | prepend: site.baseurl }}"> <link rel="canonical" href="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}"> <link rel="alternate" type="application/rss+xml" title="{{ site.title }}" href="{{ "/feed.xml" | prepend: site.baseurl | prepend: site.url }}" /> <script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"></script> <script> var channel = new BroadcastChannel('egg'); channel.addEventListener('message', message => { alert('Got a message from the other tab:\n' + message.data); }); </script> </head>