load method
Implementation
void load( url, onLoad, [onProgress, onError ]){
final scope = this;
final loader = FileLoader(this.manager);
loader.setPath(this.path);
loader.setResponseType('arraybuffer');
loader.setRequestHeader(this.requestHeader);
loader.setWithCredentials(this.withCredentials);
loader.load( url,
(text) {
onLoad(scope.parse(text));
},
onProgress,
onError
);
}