static conaxInitDataTransform(initData, initDataType, drmInfo) {
    if (initDataType !== 'skd') {
      return initData;
    }
    const StringUtils = shaka.util.StringUtils;
    const cert = drmInfo.serverCertificate;
    const initDataAsString = StringUtils.fromBytesAutoDetect(initData);
    const skdValue = initDataAsString.split('skd://').pop().split('?').shift();
    const stringToArray = (string) => {
      // 2 bytes for each char
      const buffer = new ArrayBuffer(string.length * 2);
      const array = shaka.util.BufferUtils.toUint16(buffer);
      for (let i = 0, strLen = string.length; i < strLen; i++) {
        array[i] = string.charCodeAt(i);
      }
      return array;
    };
    const contentId = stringToArray(window.atob(skdValue));
    return shaka.drm.FairPlay.initDataTransform(initData, contentId, cert);
  }
Conax initDataTransform configuration.

@param {!Uint8Array} initData
@param {string} initDataType
@param {?shaka.extern.DrmInfo} drmInfo
@return {!Uint8Array}
@export