我的云代码不正确，这里是好的代码:

My cloud code wasn't right, here is the good code:

Parse.Cloud.define("pushToAll", function (request, response) {
    var message = request.params.message;
    console.log(message);
    if (message != null && message !== "") {
        message = message.trim();
    } else {
     response.error("Must provide \"message\" in JSON data");
     return;
    }

    // Can see this at https://www.parse.com/apps/{APP_NAME}/cloud_code/log
    // var logMessage = "Sending to all installations".format(message);
    // console.log(logMessage);

    var pushQuery = new Parse.Query(Parse.Installation);
    // pushQuery.containedIn("deviceType", ["ios", "android"]); // errors if no iOS certificate

    // Send push notification to query
    Parse.Push.send({
        where: pushQuery, // Set our installation query
        data: {
            "alert": message
            }
        }, {
        success: function () {
            // Push was successful
            console.log("Message was sent successfully");
            response.success('true');
        },
        error: function (error) {
            response.error(error);
        }
   , useMasterKey: true});
});