spec.rb in vega-0.2.6

- old
+ new

@@ -4,15 +4,16 @@
       spec = spec.spec if spec.respond_to?(:spec)
       raise ArgumentError, "Expected Hash, not #{spec.class.name}" unless spec.is_a?(Hash)
       @spec = spec.transform_keys!(&:to_s)
     end
 
-    def to_s
+    def to_html(nonce: nil)
       html, js = generate_output
+      nonce_html = nonce ? " nonce=\"#{ERB::Util.html_escape(nonce)}\"" : nil
       output = <<~EOS
         #{html}
-        <script>
+        <script#{nonce_html}>
           (function() {
             var createChart = function() { #{js} };
             if ("vegaEmbed" in window) {
               createChart();
             } else {
@@ -21,9 +22,10 @@
           })();
         </script>
       EOS
       output.respond_to?(:html_safe) ? output.html_safe : output
     end
+    alias_method :to_s, :to_html
 
     # TODO only load vega-lite if $schema requires it
     def to_iruby
       html, js = generate_output
       output = <<~EOS