Re: [mediacapture-screen-share] ensure that a tab selected by the user is what an app really supposed to share (#143)

This is not possible. 

An HTML `<video>` element can display content from `file:` protocol and any URL. That same HTML `<video>` element can enter picture in picture mode. Picture in picture window is an "Application" that can be captured with `getDisplayMedia()`. Therefore while the URL where the capture initiates can be protocol://domain.mock the captured surface can be any_protocol://any_domain.any.

-- 
GitHub Notification of comment by guest271314
Please view or discuss this issue at https://github.com/w3c/mediacapture-screen-share/issues/143#issuecomment-683306296 using your GitHub account


-- 
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config

Received on Saturday, 29 August 2020 15:37:26 UTC