stopRecording.js

/*
        When the stop() method is invoked, the UA queues a task that runs the following steps:
        1 - If MediaRecorder.state is "inactive", raise a DOM InvalidState error and terminate these steps. 
        If the MediaRecorder.state is not "inactive", continue on to the next step.
        2 - Set the MediaRecorder.state to "inactive" and stop capturing media.
        3 - Raise a dataavailable event containing the Blob of data that has been gathered.
        4 - Raise a stop event.
    */
    stopRecording(id) {
        var self = this;
        self.recorder.stop();
     }