HTML renderer: throw error on unknown tag type.

This indicates a programming error.

1 files changed, 1 insertions, 1 deletions

diff --git a/js/lib/html.js b/js/lib/html.js
index 928964e..08daa95 100644
--- a/js/lib/html.js
+++ b/js/lib/html.js
@@ -225,7 +225,7 @@ var renderNodes = function(block, options) {
             break;
 
         default:
-            console.log("Unknown node type " + node.t);
+            throw("Unknown node type " + node.t);
         }
 
     }