From 120f2698304d9108659c4dc746510e5943a2b23e Mon Sep 17 00:00:00 2001
From: Brian Grinstead <briangrinstead@gmail.com>
Date: Wed, 14 Oct 2015 09:02:19 -0700
Subject: [PATCH] Handle <constructor> tags in htmlmixed mode (fixes mozilla
 bug 1214663)

---
 mode/htmlmixed/htmlmixed.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mode/htmlmixed/htmlmixed.js b/mode/htmlmixed/htmlmixed.js
index 670fd62bf1..cb04246ec8 100644
--- a/mode/htmlmixed/htmlmixed.js
+++ b/mode/htmlmixed/htmlmixed.js
@@ -91,10 +91,11 @@
     function html(stream, state) {
       var tagName = state.htmlState.tagName;
       var tagInfo = tagName && tags[tagName.toLowerCase()];
+      var isTagInfoArray = Object.prototype.toString.call(tagInfo) === "[object Array]";
 
       var style = htmlMode.token(stream, state.htmlState), modeSpec;
 
-      if (tagInfo && /\btag\b/.test(style) && stream.current() === ">" &&
+      if (isTagInfoArray && /\btag\b/.test(style) && stream.current() === ">" &&
           (modeSpec = findMatchingMode(tagInfo, stream))) {
         var mode = CodeMirror.getMode(config, modeSpec);
         var endTagA = getTagRegexp(tagName, true), endTag = getTagRegexp(tagName, false);