Add GML Vector Layer to OpenLayers from String (Variable)

Question

I am trying to add a vector layer to a map, wich is working fine if included like this:

var gmlfeature = new OpenLayers.Layer.Vector("GML", {
                      protocol: new OpenLayers.Protocol.HTTP({
                        url: "gmltest.xml",
                        format: new OpenLayers.Format.GML()
                      }),
                      strategies: [new OpenLayers.Strategy.Fixed()]
}) 

map.addLayer( gmlfeature );

I wanted to be able to upload .gml Files to the webpage, though. After parsing the GML content and reprojecting the coordinates, I would like to include the features from a string (wich has the same content as 'gmltest.xml). I tried to follow the method described in this post with no luck. Here is what I've come up with so far: jsFiddle, the Features seem to load but they are not projected as expected. A sample GML can be downloaded here.