Function catchErrors

code/composition/public/app.js:7251–7262

(fn)

var hasLoggedError = false;

function catchErrors(fn) {
  return function (arg) {
    try {
      return fn(arg);
    } catch (err) {
      if (true && !hasLoggedError) {
        hasLoggedError = true;
        warning(false, 'React DevTools encountered an error: %s', err);
      }
    }
  };
}

function injectInternals(internals) {
  if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {