function get(options) {

    var xhr = new XMLHttpRequest();

    xhr.open('get', options.url);
    // With response type set browser can get and put binary data
    // https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest/Sending_and_Receiving_Binary_Data
    // Default is text, and it can be set
    // arraybuffer, blob, document, json, text
    xhr.responseType = options.responseType || 'text';

    if (options.onprogress) {
        //https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest/Using_XMLHttpRequest
        xhr.onprogress = function(e) {
            if (e.lengthComputable) {
                var percent = e.loaded / e.total;
                options.onprogress(percent, e.loaded, e.total);
            }
            else {
                options.onprogress(null);
            }
        };
    }
    xhr.onload = function(e) {
        if (xhr.status >= 400) {
            options.onerror && options.onerror();
        }
        else {
            options.onload && options.onload(xhr.response);
        }
    };
    if (options.onerror) {
        xhr.onerror = options.onerror;
    }
    xhr.send(null);
}
@namespace clay.core.glenum
@see http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14