update

pdf.js/web/viewer.js

@@ -686,7 +686,7 @@
           kind: OptionKind.VIEWER + OptionKind.PREFERENCE
         },
         viewOnLoad: {
-          value: 0,
+          value: 1,
           kind: OptionKind.VIEWER + OptionKind.PREFERENCE
         },
         cMapPacked: {