ウィンドウはシステムエリアや OS による予約なしに画面を満たしている(最大化)。


ウィンドウはフルスクリーンアプリケーションとして稼働しているか、タブの内容がFullscreen APIを利用している(全画面)。


A docked window occupies a fixed position relative to other windows owned by the same application.

macOS compatibility: Beginning in macOS 10.10, the default maximizing behavior for windows changed to run applications as full screen applications instead of "zoomed" windows. fullscreen refers to both the browser running as a full screen application and when content in a tab uses the Fullscreen API.

Browser compatibility

BCD tables only load in the browser

メモ: This API is based on Chromium's API. This documentation is derived from windows.json in the Chromium code.Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.