Update annotation.rb

iiif-prezi · Oct 25, 2018 · 3772304 · 3772304
1 parent e5f495d
commit 3772304
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/iiif/presentation/annotation.rb b/lib/iiif/presentation/annotation.rb
@@ -12,6 +12,7 @@ def required_keys
 
       def string_only_keys
         super + %w{ on }
+      end
 
       def abstract_resource_only_keys
         super + [ { key: 'resource', type: IIIF::Presentation::Resource } ]