diff -ur liborcus.org/include/orcus/sax_parser.hpp liborcus/include/orcus/sax_parser.hpp
--- liborcus.org/include/orcus/sax_parser.hpp	2017-08-12 09:44:21.379509116 +0200
+++ liborcus/include/orcus/sax_parser.hpp	2017-08-12 09:46:06.884259216 +0200
@@ -20,7 +20,7 @@
      * parsing regardless of whether or not the xml stream begins with a
      * <?xml..?> declaration.
      */
-    static const bool strict_xml_declaration = true;
+    static const bool strict_xml_declaration = false;
 };
 
 /**