GetUserMedia() is a powerful feature that can only be used in secure contexts in insecureĬontexts, diaDevices is undefined, preventingĪccess to getUserMedia(). Specification lays out a wide array of privacy and security requirements that browsers If an object is specified for a media type, the object is read as a MediaTrackConstraints dictionary.Īs an API that may involve significant privacy concerns, getUserMedia()'s.Because both video and audio default to false, if the constraints object contains neither property or if it's not present at all, the returned promise will always reject. If false is specified for a media type, the resulting stream must not have that type of track, or the returned promise will reject.If one cannot be included for any reason, the returned promise will reject. If true is specified for a media type, the resulting stream is required to have that type of track in it.Meet the constraints given, then the returned promise is rejected withįor both video and audio, its value is either a boolean or an object. If the browser cannot find all media tracks with the specified types that The constraints parameter is an object with two members: video andĪudio, describing the media types requested. Request, along with any requirements for each type. An object specifying the types of media to
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