34 lines
No EOL
841 B
JavaScript
34 lines
No EOL
841 B
JavaScript
BR.Util = {
|
|
|
|
get: function(url, cb) {
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
xhr.open('GET', url, true);
|
|
xhr.onload = function() {
|
|
if ((xhr.status === 200 || xhr.status === 0) && xhr.responseText) {
|
|
cb(null, xhr.responseText);
|
|
} else {
|
|
cb(BR.Util.getError(xhr));
|
|
}
|
|
};
|
|
xhr.onerror = function() {
|
|
cb(BR.Util.getError(xhr));
|
|
};
|
|
try {
|
|
xhr.send();
|
|
} catch(e) {
|
|
cb(e);
|
|
}
|
|
},
|
|
|
|
getError: function(xhr) {
|
|
var msg = 'no response from server';
|
|
if (xhr.responseText) {
|
|
msg = xhr.responseText;
|
|
} else if (xhr.status || xhr.statusText) {
|
|
msg = xhr.status + ': ' + xhr.statusText;
|
|
}
|
|
return new Error(msg);
|
|
}
|
|
|
|
}; |