From bcebae31e2bc22db53d9043b33f8afbf0cd99b8f Mon Sep 17 00:00:00 2001
From: Phil Hughes <me@iamphill.com>
Date: Wed, 29 Mar 2017 16:50:10 +0100
Subject: [PATCH] Remove jQuery from IPython notebook viewer

---
 app/assets/javascripts/blob/notebook/index.js | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/app/assets/javascripts/blob/notebook/index.js b/app/assets/javascripts/blob/notebook/index.js
index 6e07105471c..9b8bfbfc8c0 100644
--- a/app/assets/javascripts/blob/notebook/index.js
+++ b/app/assets/javascripts/blob/notebook/index.js
@@ -63,16 +63,20 @@ export default () => {
       },
     },
     mounted() {
-      $('<link>', {
-        rel: 'stylesheet',
-        type: 'text/css',
-        href: gon.katex_css_url,
-      }).appendTo('head');
+      if (gon.katex_css_url) {
+        const katexStyles = document.createElement('link');
+        katexStyles.setAttribute('rel', 'stylesheet');
+        katexStyles.setAttribute('href', gon.katex_css_url);
+        document.head.appendChild(katexStyles);
+      }
 
       if (gon.katex_js_url) {
-        $.getScript(gon.katex_js_url, () => {
+        const katexScript = document.createElement('script');
+        katexScript.addEventListener('load', () => {
           this.loadFile();
         });
+        katexScript.setAttribute('src', gon.katex_js_url);
+        document.head.appendChild(katexScript);
       } else {
         this.loadFile();
       }