Error while persisting cache: SyntaxError

I got the above error while trying to follow the async example in the documentation. Luckily, a little searching and GitHub led me to GitHub Issue #5869. The fix suggested by the original poster was to fix the original syntax by declaring the function as a function like this:

async function getUsersFromApi()

But further down, there is a PR to fix the documentation by making sure the function is wrapped in a createClass method like this:

var MyComponent = React.createClass({
  async getUsersFromApi() {
    try {
      let response = await fetch('');
      let responseJson = await response.json();
      return responseJson.users;
    } catch(error) {
      throw error;

Both solutions make sense to me and both get the job done. I ended up going with the second solution. I hope this helps save someone a little time (but I’m guessing they’ll update the documentation soon enough).