lib/onebox/preview.rb in onebox-2.2.12 vs lib/onebox/preview.rb in onebox-2.2.13

@@ -1,10 +1,9 @@
 # frozen_string_literal: true
 
 module Onebox
   class Preview
-
     # see https://bugs.ruby-lang.org/issues/14688
     client_exception = defined?(Net::HTTPClientException) ? Net::HTTPClientException : Net::HTTPServerException
     WEB_EXCEPTIONS ||= [client_exception, OpenURI::HTTPError, Timeout::Error, Net::HTTPError, Errno::ECONNREFUSED]
 
     def initialize(link, options = Onebox.options)
@@ -83,10 +82,10 @@
       Sanitize.fragment(html, config)
     end
 
     def engine
       return nil unless @engine_class
-      return @engine if @engine
+      return @engine if defined?(@engine)
 
       @engine = @engine_class.new(@url)
       @engine.options = @options
       @engine
     end