在发出xml Ajax请求时获取错误412

I recently started making web-based apps with JQTouch. In this app, when a button is pressed, I'm making an ajax request that gets a xml-file from my Linux server which runs Apache. When I run my app over wifi, everything is working great. When I'm over 3g and I press the button, it also loads. But when I go back and press the button again, I get an alert with error 412: precondition failed. I've searched on internet about this error and I found that I have to disable mod_security on my server, but that doesn't solve the error :(

我最近开始使用JQTouch制作基于Web的应用程序。在这个应用程序中,当按下一个按钮时,我正在制作一个ajax请求,从我运行Apache的Linux服务器获取一个xml文件。当我通过wifi运行我的应用程序时,一切都运行良好。当我超过3克并按下按钮时,它也会加载。但是当我再次按下按钮时,我收到错误412的警报:前提条件失败。我在互联网上搜索了这个错误,我发现我必须在我的服务器上禁用mod_security,但这并不能解决错误:(

Here's my ajax request:

这是我的ajax请求:

$.ajax(
{
    type: "POST",
    cache: false,
    url: "http://draughtsonline.no-ip.org/ArtObject/catalogus/catalogus.xml",
    dataType: "xml",
    success: function(xml) 
    {
        // do stuff with the xml file
    },
    error: function(xhr, ajaxOptions, thrownError)
    {
        alert(xhr.status);
        alert(thrownError);
    },
    async: false
});

I really don't know what's wrong with it. Could anyone please help me?

我真的不知道它有什么问题。有人可以帮帮我吗?

Thanks in advance!

提前致谢!

1 个解决方案

#1

You can't POST using jQuery cross-domain. It's a security feature of JavaScript.

你不能使用jQuery跨域POST。这是JavaScript的安全功能。

An alternative is to use GET and JSONP instead of POST and XML or use a relative URL.

另一种方法是使用GET和JSONP而不是POST和XML或使用相对URL。

More information:

Synchronous cross sub-domain POST request with jQuery

使用jQuery同步交叉子域POST请求

jQuery AJAX cross domain

jQuery AJAX跨域

1 个解决方案

#1

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