From 62b4e68a1c5d325f663a49472295530c82fa980a Mon Sep 17 00:00:00 2001
From: Emily Eisenberg <emily@khanacademy.org>
Date: Thu, 25 Jul 2013 19:15:16 -0700
Subject: [PATCH] Make safari only break on fractions

Summary: Also, make errors on the initial parse not prevent further
parses.

Auditors: alpert
---
 katex.js       | 8 ++++----
 static/main.js | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/katex.js b/katex.js
index b89efddff..f9f63efae 100644
--- a/katex.js
+++ b/katex.js
@@ -86,6 +86,10 @@ var buildGroup = function(style, color, group, prev) {
     } else if (group.type === "close") {
         return makeSpan("mclose" + color, [textit(group.value)]);
     } else if (group.type === "frac") {
+        if (utils.isSafari) {
+            throw new ParseError("KaTeX fractions don't work in Safari");
+        }
+
         var fstyle = style;
         if (group.value.size === "dfrac") {
             fstyle = Style.DISPLAY;
@@ -244,10 +248,6 @@ var clearNode = function(node) {
 };
 
 var process = function(toParse, baseNode) {
-    if (utils.isSafari) {
-        throw new ParseError("KaTeX doesn't work on Safari");
-    }
-
     clearNode(baseNode);
     var tree = parseTree(toParse);
 
diff --git a/static/main.js b/static/main.js
index 803194751..63f817928 100644
--- a/static/main.js
+++ b/static/main.js
@@ -2,14 +2,14 @@ window.onload = function() {
     var input = document.getElementById("input");
     var math = document.getElementById("math");
 
-    reprocess();
-
     if ("oninput" in input) {
         input.addEventListener("input", reprocess, false);
     } else {
         input.attachEvent("onkeyup", reprocess);
     }
 
+    reprocess();
+
     function reprocess() {
         katex.process(input.value, math);
     }