# HG changeset patch
# User HIROSE Yuuji <yuuji@gentei.org>
# Date 1635171956 -32400
# Node ID 29342754a2d0ec65010d04f6a31f8f6b7cfc061a
# Parent  3891edb19b0bd1ab74c991b5d73f03129ccdfd00
Catch undefined error when MathJax not loaded

diff -r 3891edb19b0b -r 29342754a2d0 s4-main.js
--- a/s4-main.js	Mon Oct 25 23:14:53 2021 +0900
+++ b/s4-main.js	Mon Oct 25 23:25:56 2021 +0900
@@ -176,9 +176,11 @@
 	    }, 100);
 	    cnt++;
 	}
-	if (MathJax && MathJax.typesetPromise) {
-	    MathJax.typesetPromise(); // MathJax v3
-	}
+	try {
+	    if (MathJax && MathJax.typesetPromise) {
+		MathJax.typesetPromise(); // MathJax v3
+	    }
+	} catch (err) {}
 	console.log("Update "+cnt+"rows");
 	if (cnt>0 && ntr.scrollIntoView) {
 	    let option = {behavior: "smooth"};