Pipe to http server's response and get end (Internet Explorer)

[Jan Maybach]

I am struggling with this code:

All with:

                                http.createServer( function( req,res) {}

wrapped around...               

If I do this, Chrome and Internet Explorer keep blank:

                                var raw = fs.createReadStream(filePath);

        var encoding = 'deflate' ;

        raw.pipe(zlib.createDeflate()).pipe(res);

        res.writeHead(200, {

  'content-encoding' : encoding, 

  'Content-Type': contentType + '; charset=utf-8' 

});

res.end()

If I do this, Chrome loads, IE fails:

                                var raw = fs.createReadStream(filePath);

         var encoding = 'deflate' ;

         raw.pipe(zlib.createDeflate()).pipe(res);

         res.writeHead(200, {

  'content-encoding' : encoding, 

  'Content-Type': contentType + '; charset=utf-8' 

});

If I do this, there is no "end" event on the "res"

                                var raw = fs.createReadStream(filePath);

         var encoding = 'deflate' ;

         raw.pipe(zlib.createDeflate()).pipe(res);

         res.writeHead(200, {

  'content-encoding' : encoding, 

  'Content-Type': contentType + '; charset=utf-8' 

});

res.on('end', res.end )

If I do this, the server crashes with:

  -  http.js:919

    this._implicitHeader();

         ^

TypeError: Object #<ReadStream> has no method '_implicitHeader'

    at ReadStream.OutgoingMessage.end (http.js:919:10)

    at ReadStream.emit (events.js:117:20)

    at _stream_readable.js:944:16

    at process._tickCallback (node.js:442:13)

                                var raw = fs.createReadStream(filePath);

         var encoding = 'deflate' ;

         raw.pipe(zlib.createDeflate()).pipe(res);

         res.writeHead(200, {

  'content-encoding' : encoding, 

  'Content-Type': contentType + '; charset=utf-8' 

});

raw.on('end', res.end )

I am in the know about the Node.js documentation, where it says:
  -  "The method, response.end(), MUST be called on each response."
http://nodejs.org/api/http.html#http_response_end_data_encoding_callback
...

What can I do?

[Floby]

`pipe()` calls `end()` for you a the end of the source stream. So that leaves solution 1 with  mistake.

res is a writable stream and therefore does not emit "end" events.

I would suggest write the HEAD of your response before piping to it.

                                var raw = fs.createReadStream(filePath);

         var encoding = 'deflate' ;

         res.writeHead(200, {

  'content-encoding' : encoding, 

  'Content-Type': contentType + '; charset=utf-8' 

});

                                raw.pipe(zlib.createDeflate()).pipe(res);

If IE fails, then you probably need to tell us which version of IE you are targetting. I would suppose some IEs don't work well with deflate and prefer gzip, and there might also be some problems with chunked encoding.