always output a png

0c3c75ef · Georg Ehrke · 6f96ab3e · 0c3c75ef
Commit 0c3c75ef authored 11 years ago by Georg Ehrke
--- a/lib/private/preview.php
+++ b/lib/private/preview.php
@@ -463,7 +463,7 @@ class Preview {
 		if (is_null($this->preview)) {
 			$this->getPreview();
 		}
-		$this->preview->show();
+		$this->preview->show('image/png');
 		return;
 	}