uppy/src/plugins/Webcam/supportsMediaRecorder.js

Extensible JavaScript file upload widget with support for drag&drop, resumable uploads, previews, restrictions, file processing/encoding, remote providers like Instagram, Dropbox, Google Drive, S3 and more :dog:

module.exports = function supportsMediaRecorder () {
  return typeof MediaRecorder === 'function' && !!MediaRecorder.prototype &&
    typeof MediaRecorder.prototype.start === 'function'
}