Add sidebar to docs/web/api/htmliframeelement/contentdocument (mdn#16378

) * Add sidebar to docs/web/api/htmliframeelement/contentdocument * Fix quotes and remove extra parenthesis
meyerweb · May 22, 2022 · b33df53 · b33df53
1 parent f117767
commit b33df53
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/files/en-us/web/api/htmliframeelement/contentdocument/index.md b/files/en-us/web/api/htmliframeelement/contentdocument/index.md
@@ -3,6 +3,9 @@ title: HTMLIFrameElement.contentDocument
 slug: Web/API/HTMLIFrameElement/contentDocument
 browser-compat: api.HTMLIFrameElement.contentDocument
 ---
+
+{{APIRef("HTML DOM")}}
+
 If the iframe and the iframe's parent document are [Same Origin](/en-US/docs/Web/Security/Same-origin_policy), returns a [`Document`](/en-US/docs/Web/API/Document) (that is, the active document in the inline frame's nested browsing context), else returns `null`.
 
 ## Example of contentDocument