Re: [mediacapture-screen-share] Revisit: Let getDisplayMedia() influence the default type choice in the picker (#184)

as to "what's in the spec is wrong":
I was trying to find justification for why the lack of a "what you want to share can probably be found in this category" constraint was a security feature. I did not find it in either document.

This section:

"Not accepting constraints for source selection means that getDisplayMedia only provides fingerprinting surface that exposes whether audio, video or audio and video display sources are present. (This is a fingerprinting vector.)"

doesn't compute for me.

And this section (from the security questionnaire):

The decision of what to share (or whether to share anything at all) rests entirely with the end-user. Websites cannot influence this choice in any way

is listed as an answer to the question "Is this specification exposing the minimum amount of information necessary to power the feature?"

It is not at all clear that it is an answer to the question, and again, it does not reflect a reasoning behind it.




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Received on Monday, 14 June 2021 14:50:25 UTC