fix issue #265 - remove base64 images before passive detection

lib/common/collections/wp_items/detectable.rb

@@ -73,6 +73,8 @@ class WpItems < Array
     def passive_detection(wp_target, options = {})
       results  = new(wp_target)
       body     = Browser.get(wp_target.url).body
+      # improves speed
+      body     = remove_base64_images_from_html(body)
       names    = body.scan(passive_detection_pattern(wp_target))
 
       names.flatten.uniq.each { |name| results.add(name) }