added 'error' messages; exceptions in imgConvert are now errors (not warnings)

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/document-to-html.js b/lib/document-to-html.js
index f2d5229..6aa7a9c 100644
--- a/lib/document-to-html.js
+++ b/lib/document-to-html.js
@@ -185,7 +185,7 @@ function DocumentConversion(options) {
     function recoveringConvertImage(convertImage) {
         return function(image, messages) {
             return convertImage(image, messages).caught(function(error) {
-                messages.push(results.warning(error.message));
+                messages.push(results.error(error));
                 return [];
             });
         };