如何提交变更表格? [英] How to submit a form on change?

问题描述

这个问题专门针对Captive Network Assistant.

我尝试过使用原生 JavaScript，

I have tried using vanilla JavaScript,

<form action="">
    <select name="test" onchange="this.form.submit()">
        <option value="1">1</option>
        <option value="2">2</option>
        <option value="3">3</option>
        <option value="4">4</option>
    </select>
</form>

也可以使用 jQuery，以防出现浏览器不兼容问题.

As well using jQuery, in case there was a browser incompatibility issue.

$('select').on('change', function () {
    $(this).closest('form').submit();
});

但是，它们都不起作用，而且 Captive Portal 问题不是一个容易调试的 cookie.有已知的解决方案吗?

However, none of them work and Captive Portal issues are not an easy cookie to debug. Is there a known solution?

推荐答案

您的代码看起来不错.您可能希望填写表单的 action 属性，并且可能还需要使用 method 和 enctype 属性.

Your code looks fine. You probably want to fill in the action attribute of your form and possibly use the method and enctype attributes as well.

这是您在 jsFiddle

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