Get MathJax on mastodon v2.0.0

README.md

This is based on Mastodon v2.0.0.

Save mathjax.diff in your mastodon directory, then run git apply mathjax.diff.

You need a copy of MathJax in ./public/MathJax. Get MathJax from https://github.com/mathjax/MathJax/archive/master.zip.

mathjax.diff

diff --git a/app/javascript/mastodon/components/status_content.js b/app/javascript/mastodon/components/status_content.js
index 2069f97..047f909 100644
--- a/app/javascript/mastodon/components/status_content.js
+++ b/app/javascript/mastodon/components/status_content.js
@@ -50,8 +50,14 @@ export default class StatusContent extends React.PureComponent {
     }
   }
 
+  _renderMathJax () {
+    const node = this.node;
+    MathJax.Hub.Queue(["Typeset", MathJax.Hub, node]);
+  }
+
   componentDidMount () {
     this._updateStatusLinks();
+    this._renderMathJax();
   }
 
   componentDidUpdate () {
diff --git a/app/views/layouts/application.html.haml b/app/views/layouts/application.html.haml
index 88eff7d..d3dd8fa 100755
--- a/app/views/layouts/application.html.haml
+++ b/app/views/layouts/application.html.haml
@@ -11,6 +11,7 @@
     %meta{ name: 'msapplication-config', content: '/browserconfig.xml' }/
     %meta{ name: 'theme-color', content: '#282c37' }/
     %meta{ name: 'apple-mobile-web-app-capable', content: 'yes' }/
+    %script{:src => "/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML"}
 
     %title<
       - if content_for?(:page_title)
diff --git a/app/views/layouts/embedded.html.haml b/app/views/layouts/embedded.html.haml
index 46dab2d..3b83cf0 100644
--- a/app/views/layouts/embedded.html.haml
+++ b/app/views/layouts/embedded.html.haml
@@ -8,5 +8,7 @@
     = javascript_pack_tag 'common', integrity: true, crossorigin: 'anonymous'
     = javascript_pack_tag "locale_#{I18n.locale}", integrity: true, crossorigin: 'anonymous'
     = javascript_pack_tag 'public', integrity: true, crossorigin: 'anonymous'
+    %script{:src => "/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML"}
+
   %body.embed
     = yield