feat(core)!: remove headers field from page data

packages/core/src/page/createPage.ts

@@ -101,7 +101,6 @@ export const createPage = async (
       title,
       lang,
       frontmatter,
-      headers,
     },
 
     // base fields

packages/core/src/types/page.ts

@@ -1,5 +1,10 @@
 import type { MarkdownLink, MarkdownSfcBlocks } from '@vuepress/markdown'
-import type { PageBase, PageData, PageFrontmatter } from '@vuepress/shared'
+import type {
+  PageBase,
+  PageData,
+  PageFrontmatter,
+  PageHeader,
+} from '@vuepress/shared'
 
 /**
  * Vuepress Page
@@ -40,6 +45,11 @@ export type Page<
      */
     deps: string[]
 
+    /**
+     * Headers of the page
+     */
+    headers: PageHeader[]
+
     /**
      * Links of the page
      */

packages/core/tests/page/createPage.spec.ts

@@ -34,7 +34,6 @@ describe('should work without plugins', () => {
     expect(page.data.lang).toBe('en-US')
     expect(page.data.title).toBe('')
     expect(page.data.frontmatter).toEqual({})
-    expect(page.data.headers).toEqual([])
 
     // base fields
     expect(page.path).toBe('/')

packages/shared/src/types/page.ts

@@ -36,11 +36,6 @@ export interface PageBase<
    * Front matter of the page
    */
   frontmatter: PageFrontmatter<ExtraPageFrontmatter>
-
-  /**
-   * Headers of the page
-   */
-  headers: PageHeader[]
 }
 
 /**