mediaStream argument is not optional in createMediaStreamSource #edgebug

By design Issue #10795980


Feb 3, 2017
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Reported by 1 person

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    • Microsoft Edge Team

      Changed Assigned To to “Brad E.”

      Changed Assigned To from “Brad E.” to “James M.”

      Changed Status to “By design”

    • Hello,

      Thank you for providing this information about the issue. The argument is not optional by design. Please refer to

      We are able to reproduce your results and find the example also produces the same behavior in other browsers. Please update this case if you can provide further documentation for us to consider.

      Best Wishes,
      The MS Edge Team

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