       element.parentElement?.removeChild(element)
 
   deleteMeta: (document) ->
-    metaElements = document.querySelectorAll(
-      'meta[http-equiv="Content-Security-Policy"]'
-    )
+    metaElements = document.querySelectorAll('meta[http-equiv]')
     metaElements.forEach (element) ->
-      element.parentElement?.removeChild(element)
+      if element.getAttribute('http-equiv') in META_ATTRIBS_FOR_DEL
+        element.parentElement?.removeChild(element)
 
   deleteSendBoxAttrib: (document) ->
     iframes = document.querySelectorAll('iframe[sendbox]')

              callback counter
          else
            href = convertURL(tag.getAttribute('href'), dom.url)
            Base64 href,tag,(error, tag, result) ->
              counter--
              if error?
                console.error "(href) Base 64 error:", error.stack
              else
                tag.setAttribute "href", result
              callback counter

            counter--
            if error?
              console.error "(style)gonzales error:", error.stack
              console.error tag.innerHTML
            else
              tag.innerHTML = result
            callback counter
