When using `window.onerror` in the bootstrap script that is hosted in a CDN the error message will show `"Script error."` instead of a proper error message. This is because of the [cross-origin](https://blog.sentry.io/2016/05/17/what-is-script-error/) script. To fix this issue a `crossorigin="anonymous"` attribute needs to be added in the script tag.

Currently, `bootstrapScripts` supports [`src` and `integrity`](https://github.com/facebook/react/blob/0fce6bb498357feb4465859912004b2e20fe7084/packages/react-dom-bindings/src/server/ReactDOMServerFormatConfig.js#L226) as configurations, should it also supports a `crossorigin` property?


const mappedErrows = errorsArr.map(({error, errorInfo}) => {
      const stack = errorInfo && errorInfo.componentStack;
      const digest = error.digest;
      if (stack) {
        return [error.message, digest, normalizeCodeLocInfo(stack)];
      } else if (digest) {
        return [error.message, digest];
      }
      return error.message;
    });
    if (__DEV__) {
      expect(mappedErrows).toEqual(toBeDevArr);
    } else {
      expect(mappedErrows).toEqual(toBeProdArr);
    }
  }
  function componentStack(components) {
    return components
      .map(component => `\n    in ${component} (at **)`)
      .join('');
  }
  const bodyStartMatch = /<body(?:>| .*?>)/;
  const headStartMatch = /<head(?:>| .*?>)/;
  async function act(callback) {