Fetching & Displaying Data

What potential issue does this data fetching implementation have?
async function fetchUserData() {
  const response = await fetch('/api/user');
  const data = await response.json();
  displayUserData(data);
}

function displayUserData(data) {
  document.getElementById('username').textContent = data.name;
  document.getElementById('email').textContent = data.email;
}
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