在$ .ajax中调用类似于$ .get的调用

I have the following code:

$.get(url, {}, checkResponse)

And the following function:

function checkResponse(content) {}

The parameter "content" here is the result of the "get". I wanted to implement $.ajax to able to wait for the process to complete before it jump to the next chunk of code. I tried the following code but it didn't work.

$.ajax({
    async: false,
    type: 'GET',
    url: url,
    success: function (data) {
        alert(data.toString());
        checkResponse(data);
    },
    error: function (data) {
        alert("error");
    }
});

Here's what happened, the alert for the data.toString() gives empty string value while it should give me the url page content, and after it hits the alert it jumps to the error section and displays the alert "error".

According to the discussion in the comments section you are trying to send cross domain AJAX calls to arbitrary urls on the internet. Due to the same origin policy restriction that's built into the browsers this is not possible.

Possible workarounds involve using JSONP or CORS but since you will be sending requests to arbitrary urls that you have no control over they might not be an option. The only viable solution in this case is for you to write a server side script that you will host on your domain acting as a bridge. This script will receive an url as parameter and send an HTTP request to this url in order to retrieve the result. Then it will simply return the result back to the response. Finally you will send an AJAX request to your own server side script.