[Vuejs]-How to get the managed metadata fields from site page values via rest api on spfx vue js

Pleace tring to get the Managed metadata fields of listitems:

_api/web/lists/getbytitle('testlist')/items?$select=ID,Title,MetaField,TaxCatchAll/ID,TaxCatchAll/Term&$expand=TaxCatchAll

The page properties include manage metadata fields:

/_api/web/getFolderByServerRelativeUrl('page')?$expand=Folders,Files/ListItemAllFields" 

Refer:get-all-sharepoint-document-library-files