function determineCanUseActiveElement()

in src/components/UncontrolledTabs.js [26:44]

• 13 lines of code
• 6 McCabe index (conditional complexity)

function determineCanUseActiveElement(environment) {
  const env =
    environment || (typeof window !== 'undefined' ? window : undefined);

  try {
    canUseActiveElement = !!(
      typeof env !== 'undefined' &&
      env.document &&
      env.document.activeElement
    );
  } catch (e) {
    // Work around for IE bug when accessing document.activeElement in an iframe
    // Refer to the following resources:
    // http://stackoverflow.com/a/10982960/369687
    // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12733599
    // istanbul ignore next
    canUseActiveElement = false;
  }
}