Unlock in Component.js

onWindowBeforeUnload() {
      const appProperties = this.getModel('appProperties');
      if (appProperties.getProperty('/skipUnlockOnRedirect')) {
        appProperties.setProperty('/skipUnlockOnRedirect', false);
        return;
      }
      this.sendInfrcUnlockAsync(appProperties, this.getModel());
    }
    sendInfrcUnlockAsync(appProperties, oModel) {
      const _guid = appProperties.getProperty('/guid');
      if (!_guid) {
        return;
      }
      const xhr = new XMLHttpRequest(), sCookie = document.cookie;
      let sapClient = '';
      sCookie.split(';').forEach((i) => {
        const aParam = i.split('=');
        // we can have more '=' in cookie parameter string e.g sap-usercontext=sap-client=n
        if (aParam[0].trim() === 'sap-usercontext') {
          sapClient = i.substring(i.indexOf(aParam[1]));
        }
      });
      const sGuid = jQuery.sap.encodeURL(`'${_guid}'`);
      xhr.open('POST', `${oModel.sServiceUrl}/InfrcUnlock?${sapClient}&Guid=${sGuid}`, true);
      xhr.setRequestHeader('x-csrf-token', oModel.getSecurityToken());
      xhr.send();
    }