Function onError

packages/react-devtools-core/src/standalone.js:178–204

({code, message}: $FlowFixMe)

}

function onError({code, message}: $FlowFixMe) {
  safeUnmount();

  if (code === 'EADDRINUSE') {
    node.innerHTML = `
      <div class="box">
        <div class="box-header">
          Another instance of DevTools is running.
        </div>
        <div class="box-content">
          Only one copy of DevTools can be used at a time.
        </div>
      </div>
    `;
  } else {
    node.innerHTML = `
      <div class="box">
        <div class="box-header">
          Unknown error
        </div>
        <div class="box-content">
          ${message}
        </div>
      </div>
    `;
  }
}

function openProfiler() {
  // Mocked up bridge and store to allow the DevTools to be rendered