From 0d57ddfd237e7b8a2549a2e36e71de8b42600a9d Mon Sep 17 00:00:00 2001
From: Miguel Serrano <mserranom@users.noreply.github.com>
Date: Wed, 27 Jan 2021 11:11:25 +0100
Subject: [PATCH] Merge pull request #3603 from
 overleaf/msm-fix-react-mathjax-not-available

Ignored MathJax setup when not available

GitOrigin-RevId: 716af272070b15d3fa1c346bea611f0e1abbac33
---
 .../frontend/js/features/chat/components/message-content.js    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/services/web/frontend/js/features/chat/components/message-content.js b/services/web/frontend/js/features/chat/components/message-content.js
index a5776cf1ee..7172a6b28b 100644
--- a/services/web/frontend/js/features/chat/components/message-content.js
+++ b/services/web/frontend/js/features/chat/components/message-content.js
@@ -6,6 +6,9 @@ function MessageContent({ content }) {
   const root = useRef(null)
 
   useEffect(() => {
+    if (!(window.MathJax && window.MathJax.Hub)) {
+      return
+    }
     const MJHub = window.MathJax.Hub
     const inlineMathConfig = MJHub.config && MJHub.config.tex2jax.inlineMath
     const alreadyConfigured = inlineMathConfig.some(