should mark js code as html_safe

Author: hedgeye-diego

app/helpers/opal_helper.rb

@@ -11,7 +11,7 @@ def opal_tag(opal_code_or_options = nil, html_options = {}, &block)
     compiler = Opal::Compiler.new(opal_code_or_options, compiler_options)
     js_code = compiler.compile
     javascript_tag html_options do
-      js_code
+      js_code.html_safe
     end
   end