The content-type 'application/javascript' should not raise an error

[Pamplemousse]

I get an error in the Interoperability section during the scan of a website, stating:

'content-type' header media type value should be 'text/javascript', not 'application/javascript'. 

Hinting that the text/javascript should be used in place of the application/javascript.

However, this is the exact opposite of what the RFC 4329 states:

   Use of the "text" top-level type for this kind of content is known to
   be problematic.  This document thus defines text/javascript and text/
   ecmascript but marks them as "obsolete".  Use of experimental and
   unregistered media types, as listed in part above, is discouraged.
   The media types,

      * application/javascript
      * application/ecmascript

   which are also defined in this document, are intended for common use
   and should be used instead.

[alrra]

@Pamplemousse See webhintio/hint#568 (comment). Thanks!