no highlight if no language specified

13 years ago · e3f2eb8452
parent e79cbe114b
commit e3f2eb8452
1 changed files with 4 additions and 0 deletions
--- a/IPython/html/static/notebook/js/main.js
+++ b/IPython/html/static/notebook/js/main.js
@ -99,6 +99,10 @@ function (marked) {
            tables: true,
            langPrefix: "language-",
            highlight: function(code, lang) {
+                if (!lang) {
+                    // no language, no highlight
+                    return code;
+                }
                var highlighted;
                try {
                    highlighted = hljs.highlight(lang, code, false);