2.1請求home page 的url：
https://spartacus-dev2.eastus.cloudapp.azure.com:9002/occ/v2/electronics-spa/cms/pages?fields=DEFAULT&pageType=ContentPage&pageLabelOrId=homepage&lang=en&curr=USD加載pageContext：homepage，類型為ContentPage
this.cmsPageAdapter.load(pageContext):
