Perhaps:

res.setContentType(trans.getOutputProperties().getProperty("media-type"));

Cheers,
Geert

Ai / Hiro wrote:
> Hi list,
> 
> I'm using java servlet and XSLT 2.0 with Saxon-B 8.6.1 and want to 
> output the result of a transformation with a proper content type/media 
> type, using the @media-type attribute of an <xsl:output/> element or 
> <xsl:result-document/> element that has the attribute or the @format 
> attribute that refers to a named <xsl:output/> element. However, the 
> specified media-type is not recognized this way, so, I have to use 
> HttpServletResponse.setContentType(), which needs to be used before the 
> transformation. Other attributes of xsl:output, such as @encoding, work 
> well, but @media-type does not, at least with the following codes:
> 
>   public void doGet(HttpServletRequest req, HttpServletResponse res) 
> throws IOException {
>     ...
>     //PrintWriter out = res.getWriter(); // does not work
>     OutputStream out = res.getOutputStream(); // neither
>     try {
>       trans.transform(xmlSource, new StreamResult(out));
>     }
>     ...
>   }
> 
> Does anyone have a clue how to make this work?
> 
> Regards,
> -- 
> Ai