Add no cores to fetch
// There were no quick access to mode and credentials to other fetch answers.
// Data you'll be sending
const data = { funny: "Absolutely not", educational: "yas" }
fetch('https://example.com/api/', {
method: 'POST', // The method
mode: 'no-cors', // It can be no-cors, cors, same-origin
credentials: 'same-origin', // It can be include, same-origin, omit
headers: {
'Content-Type': 'application/json', // Your headers
},
body: JSON.stringify(data),
}).then(returnedData => {
// Do whatever with returnedData
}).catch(err => {
// In case it errors.
})