Document.hasStorageAccess() - Web API 接口参考 编辑

这是一个实验中的功能
此功能某些浏览器尚在开发中，请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订，所以在未来版本的浏览器中该功能的语法和行为可能随之改变。

Document的hasStorageAccess() 方法返回了一个Promise来判断该文档是否有访问第一方储存的权限。

通过 Storage Access API 获取更多信息。

语法

var promise = document.hasStorageAccess();

参数

None.

返回值

一个用来判断文档是否有权利访问其第一方存储的Promise 。

If the promise gets resolved and a user gesture event was being processed when the function was originally called, the resolve handler will run as if a user gesture was being processed, so it will be able to call APIs that require user activation.

Examples

document.hasStorageAccess().then(hasAccess => {
  if (hasAccess) {
    // storage access has been granted already.
  } else {
    // storage access hasn't been granted already;
    // you may want to call requestStorageAccess().
  }
});

Specifications

The API is currently only at the proposal stage — the standardization process has yet to begin. You can currently find specification details of the API at Apple's Introducing Storage Access API blog post, and WHATWG HTML issue 3338 — Proposal: Storage Access API.

Browser compatibility

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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.

See also

Storage Access API