HTML writer: only issue warning for missing title if --standalone.

1 files changed, 13 insertions, 11 deletions

diff --git a/src/Text/Pandoc/Writers/HTML.hs b/src/Text/Pandoc/Writers/HTML.hs
index 1796b6481..e904b5fb7 100644
--- a/src/Text/Pandoc/Writers/HTML.hs
+++ b/src/Text/Pandoc/Writers/HTML.hs
@@ -189,17 +189,19 @@ writeHtmlString' :: PandocMonad m
                  => WriterState -> WriterOptions -> Pandoc -> m String
 writeHtmlString' st opts d = do
   (body, context) <- evalStateT (pandocToHtml opts d) st
-  -- check for empty pagetitle
-  context' <-
-     case getField "pagetitle" context of
-          Just (s :: String) | not (null s) -> return context
-          _ -> do
-            report $ NoTitleElement "Untitled"
-            return $ resetField "pagetitle" ("Untitled" :: String) context
-  return $ case writerTemplate opts of
-             Nothing  -> renderHtml body
-             Just tpl -> renderTemplate' tpl $
-                           defField "body" (renderHtml body) context'
+  case writerTemplate opts of
+       Nothing -> return $ renderHtml body
+       Just tpl -> do
+         -- check for empty pagetitle
+         context' <-
+            case getField "pagetitle" context of
+                 Just (s :: String) | not (null s) -> return context
+                 _ -> do
+                   report $ NoTitleElement "Untitled"
+                   return $ resetField "pagetitle" ("Untitled" :: String)
+                               context
+         return $ renderTemplate' tpl $
+                    defField "body" (renderHtml body) context'
 
 writeHtml' :: PandocMonad m => WriterState -> WriterOptions -> Pandoc -> m Html
 writeHtml' st opts d = do