if 'key' in data:
            import wvhelper
            if not wvhelper.check_inputstream():
                return

            li.setProperty('inputstreamaddon', 'inputstream.adaptive')
            li.setProperty('inputstream.adaptive.manifest_type', 'mpd')
            li.setProperty('inputstream.adaptive.license_type', 'com.widevine.alpha')
            if headers:
                li.setProperty('inputstream.adaptive.stream_headers', headers)
            li.setProperty('inputstream.adaptive.license_key', '{0}|Content-Type=application%2Fx-www-form-urlencoded%2F{1}|A{{SSM}}|'.format(data['key'], headers))