[w3c/manifest] Could you review Chrome/Firefox implementation regarding `fullscreen` display mode on Mac? (#934)

The `fullscreen` display mode is defined as follows:

> Opens the web application without any user agent chrome and takes up the entirety of the available display area. 

https://w3c.github.io/manifest/#dom-displaymodetype-fullscreen


Desktop browsers can enter full screen. On Windows, a browser in full screen does not show any UI, i.e., the web content takes up the entire screen. However on Mac, even when a browser “enters full screen,” the browser’s UI is still fully shown.

![ndfiXy-gmEt-syJC](https://user-images.githubusercontent.com/716405/92946328-cbb19880-f456-11ea-9881-c7b68babf8a6.gif)

Considering the above “without any user agent chrome” definition, it seems to me that Mac browsers in full screen should not match the `fullscreen` display mode.

Chrome and Firefox do. Safari doesn’t. Which one is correct?

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Received on Friday, 11 September 2020 15:50:07 UTC