parseXML does not conform to the XML-RPC Specification

[silkPK]

According to the XML-RPC Specification, if Scalar s no type is indicated, the default type is string.
Some servers omit to set the scalar type, and in this case mimic fails to materialize a valid js object.

The solution is to set the default value in the "unmarshal" function by setting:
defaults:
this.params[this.params.length] = new String(node.nodeValue);