Fix error where MathJax has not completed loading.

Only wait 0.5 s for loading to complete. May not be enough on all systems
jmshea · Nov 16, 2021 · bb02d22 · bb02d22
1 parent 2a889a2
commit bb02d22
Showing 1 changed file with 19 additions and 6 deletions.
diff --git a/jupyterquiz/show_questions.js b/jupyterquiz/show_questions.js
@@ -134,12 +134,25 @@ function show_questions(json, mydiv) {
     if (typeof MathJax != 'undefined') {
         console.log("MathJax version", MathJax.version);
         var version = MathJax.version;
-        if (version[0] == "2") {
-            MathJax.Hub.Queue(["Typeset", MathJax.Hub]);
-        } else if (version[0] == "3") {
-            MathJax.typeset([mydiv]);
-        } else {
-            console.log("MathJax not found");
+        setTimeout(function(){
+            var version = MathJax.version;
+            console.log('After sleep, MathJax version', version);
+            if (version[0] == "2") {
+                MathJax.Hub.Queue(["Typeset", MathJax.Hub]);
+            } else if (version[0] == "3") {
+                MathJax.typeset([mydiv]);
+            }
+        }, 500);
+if (typeof version == 'undefined') {
+        } else
+        {
+            if (version[0] == "2") {
+                MathJax.Hub.Queue(["Typeset", MathJax.Hub]);
+            } else if (version[0] == "3") {
+                MathJax.typeset([mydiv]);
+            } else {
+                console.log("MathJax not found");
+            }
         }
     }
     return false;