与 local 和 sync 存储区域不同，managed 存储区域的结构必须为 声明为 JSON 架构，并经过 Chrome 的严格验证。此架构必须存储在 （由 "storage" 清单键的 "managed_schema" 属性指示）文件，并声明 支持的企业政策。
政策类似于选项 由系统管理员配置 针对安装了政策的扩展程序，允许针对 组织内的所有用户有关示例，请参阅 Chrome 如何处理政策 。
声明政策后，您可以通过 storage.managed API 读取政策。这取决于 扩展程序以强制执行管理员配置的政策。
manifest.json 示例
storage.managed_schema 属性表示扩展名中包含该政策的文件 架构。
{ "name": "My enterprise extension", "storage": { "managed_schema": "schema.json" }, ... } 然后，Chrome 会从基础操作系统和 Google Apps for Business 加载这些政策。 已登录的用户只要检测到政策更改，就会触发 storage.onChanged 事件。 您可以访问 chrome://policy 验证 Chrome 已加载的政策。
架构格式
对于 JSON 架构格式，Chrome 还需遵循一些额外要求：
- 顶级架构的类型必须为
object。 - 顶级
object不能包含additionalProperties。声明的properties是 政策。 - 每个架构必须有一个
$ref值或只有一个type。
如果架构无效，则 Chrome 不会加载该扩展程序，并会说明 架构未经过验证。如果政策值不符合架构，则不会 由 storage.managed API 发布。
示例架构
{ "type": "object", // "properties" maps an optional key of this object to its schema. At the // top-level object, these keys are the policy names supported. "properties": { // The policy name "AutoSave" is mapped to its schema, which in this case // declares it as a simple boolean value. // "title" and "description" are optional and are used to show a // user-friendly name and documentation to the administrator. "AutoSave": { "title": "Automatically save changes.", "description": "If set to true then changes will be automatically saved.", "type": "boolean" }, // Other simple types supported include "integer", "string" and "number". "PollRefreshRate": { "type": "integer" }, "DefaultServiceUrl": { "type": "string" }, // "array" is a list of items that conform to another schema, described // in "items". An example to this schema is [ "one", "two" ]. "ServiceUrls": { "type": "array", "items": { "type": "string" } }, // A more complex example that describes a list of bookmarks. Each bookmark // has a "title", and can have a "url" or a list of "children" bookmarks. // The "id" attribute is used to name a schema, and other schemas can reuse // it using the "$ref" attribute. "Bookmarks": { "type": "array", "id": "ListOfBookmarks", "items": { "type": "object", "properties": { "title": { "type": "string" }, "url": { "type": "string" }, "children": { "$ref": "ListOfBookmarks" } } } }, // An "object" can have known properties listed as "properties", and can // optionally have "additionalProperties" indicating a schema to apply to // keys that aren't found in "properties". // This example policy could map a URL to its settings. An example value: // { // "youtube.com": { // "blocklisted": true // }, // "google.com": { // "bypass_proxy": true // } // } "SettingsForUrls": { "type": "object", "additionalProperties": { "type": "object", "properties": { "blocklisted": { "type": "boolean" }, "bypass_proxy": { "type": "boolean" } } } } } }