From RFC 4329 - Scripting Media Types...

   Various unregistered media types have been used in an ad-hoc fashion

   to label and exchange programs written in ECMAScript and JavaScript.

   These include:



      +-----------------------------------------------------+

      | text/javascript          | text/ecmascript          |

      | text/javascript1.0       | text/javascript1.1       |

      | text/javascript1.2       | text/javascript1.3       |

      | text/javascript1.4       | text/javascript1.5       |

      | text/jscript             | text/livescript          |

      | text/x-javascript        | text/x-ecmascript        |

      | application/x-javascript | application/x-ecmascript |

      | application/javascript   | application/ecmascript   |

      +-----------------------------------------------------+



   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.



   This document defines equivalent processing requirements for the

   types text/javascript, text/ecmascript, and application/javascript.

   Use of and support for the media type application/ecmascript is

   considerably less widespread than for other media types defined in

   this document.  Using that to its advantage, this document defines

   stricter processing rules for this type to foster more interoperable

   processing.

17.8.2006, 11:03