FIX: Respect invalidate_oneboxes option for inline oneboxes

lib/inline_oneboxer.rb

@@ -23,8 +23,9 @@ class InlineOneboxer
 
   def self.lookup(url, opts = nil)
     opts ||= {}
+    opts = opts.with_indifferent_access
 
-    unless opts[:skip_cache]
+    unless opts[:skip_cache] || opts[:invalidate]
       cached = cache_lookup(url)
       return cached if cached.present?
     end