Question

这在Chrome下完美运行，但在Firefox中，字段不会填充，直到我在页面上点击提交的第二次（从第一次告诉我无效的用户/通过后回来）。我错过了什么？

这是我的Greasemonkey脚本代码：

document.getElementById('loginBtn').addEventListener('click',
function (event) {
    document.getElementById('serverLogin').selectedIndex = "2";
    document.getElementById('usernameLogin').value = "username";
    document.getElementById('passwordLogin').value = "password";
    document.getElementById('loginForm').action = 'urltosubmit';
    location.href="javascript:(function(){ document.forms['loginForm'].submit(); })()";
},true);

Answer 1

您应该发布您的表单代码，但问题很可能就是事件传播。

将功能更改为：

document.getElementById('loginBtn').addEventListener('click',
function (event) {
    document.getElementById('serverLogin').selectedIndex = "2";
    document.getElementById('usernameLogin').value = "username";
    document.getElementById('passwordLogin').value = "password";
    document.getElementById('loginForm').action = 'urltosubmit';
    location.href="javascript:(function(){ document.forms['loginForm'].submit(); })()";

    event.preventDefault();
    event.stopPropagation();
    return false;
},true);

Answer 2

或者也许......

document.getElementById('loginForm').addEventListener("submit", function(e)
{
    var fields = e.target.elements;
    fields.namedItem("serverLogin").selectedIndex = 2;
    fields.namedItem("usernameLogin").value = "username";
    fields.namedItem("passwordLogin").value = "password";
    e.target.setAttribute("action", "urltosubmit");
}, false);

Greasemonkey：设置表单值在Firefox中不起作用

2 个答案: