在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

弃用
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the 兼容性表格 at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

additionalData 特性为 PasswordCredential interface takes one of a FormData instance, a URLSearchParams instance, or null. The data in the objects will be added to the request body and sent to the remote endpoint with the credentials.

句法

passwordCredential.additionalData = formData
formData = passwordCredential.additionalData
passwordCredential.additionalData = urlSearchParams
ulrSearchParams = passwordCredential.additionalData
					

值

One of a FormData instance, a URLSearchParams instance, or null.

范例

The following example creates a FormData object with an appended CSRF token . It then stores the form object in the additionalData parameter, before sending it to server in a call to fetch .

//The options object was previously created.
navigator.credentials.get(options).then(function(creds) {
  if (creds.type == 'password') {
    var form = new FormData();
    var csrf_token = document.querySelector('csrf_token').value;
    form.append('csrf_token', csrf_token);
    creds.additionalData = form;
    fetch('https://www.example.com', {
      method: 'POST',
      credentials: creds
    });
  };
});
					

规范

规范	状态	注释
Credential Management Level 1	工作草案	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
additionalData 弃用	Chrome 51	Edge ≤79	Firefox ?	IE ?	Opera ?	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0

图例

完整支持

完整支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

弃用。不要用于新网站。

弃用。不要用于新网站。

元数据

• 最后修改： Mar 18, 2019

相关话题

1. PasswordCredential
2. 构造函数

   1. PasswordCredential
3. 特性

   1. additionalData
   2. iconURL
   3. idName
   4. 名称
   5. password
   6. passwordName