The form submissions used in both, the postMessage and the
window.name
transport hasn't any charset encodings set. I came over this as i
wrote a CrossDomainRPCService-Filter to replace the need of override
the "readContent" and "writeResponse" Method of
"FlexibleRemoteServiceServlet". I need to know the request encoding,
but there is no encoding returned, instead null is returned.
It could be usefull to define a utf-8 encoding in the "accept-charset"
attribute of the form-element contained in the iframe. Is this
possible?