// Works
fetch('https://dummyjson.com/products/1', {
    method: 'PATCH',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ title: 'Test' }),
  })
    .then((res) => res.json())
    .then(console.log)

// Doesn't work
fetch('https://dummyjson.com/products/1', {
    method: 'patch', // <-- lowercased
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ title: 'Test' }),
  })
    .then((res) => res.json())
    .then(console.log)

// Works
fetch('https://dummyjson.com/products/1', {
    method: 'put', // <-- also lowercased, but it works
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ title: 'Test' }),
  })
    .then((res) => res.json())
    .then(console.log)