Current version in SVN has broken WSF implementation. This is the "stack"trace I get with firebug:
parentnode has no properties
getElementsByTagNameNS(undefined, "http://www.opengis.net/gml", "gml", "coordinates")OpenLayers.js (line 2619)
processXMLNode(featuremember)OpenLayers.js (line 14706)
initialize(Object style=Object options=Object reportError=false, featuremember)OpenLayers.js (line 14671)
Class()OpenLayers.js (line 488)
addResults([featuremember, featuremember, featuremember, 22 more...])OpenLayers.js (line 12260)
requestSuccess(XMLHttpRequest)OpenLayers.js (line 12245)
bind()prototype.js (line 71)
respondToReadyState(4)OpenLayers.js (line 2562)
onStateChange()OpenLayers.js (line 2490)
bind()prototype.js (line 71)
[Break on this error] if (parentnode.getElementsByTagNameNS) {
OpenLayers.js (line 2619)
If I use latest stable version WFS is working fine but if I build OpenLayers from your SVN it is not working (build with your python script buildUncompressed.py).
