I set axios common header Content-Type = application/json by below code:
axios.defaults.headers.common['Content-Type'] = 'application/json';
But when I tried to use axios.post('apiurl', json), browser Content-Type still is application/x-www-form-urlencoded
I tried to use axios.post('Get_Office_PO_NO_Data', json, { headers: { 'content-type': 'application/json' } }) and axios can request application/json content type

