In the AMP story documentation: https://www.ampproject.org/docs/reference/components/amp-story#bookend-json-endpoint
There is a visible 'x' on the last page in the upper-right corner (presumably to close it): https://raw.githubusercontent.com/ampproject/amphtml/master/extensions/amp-story/img/related-articles.gif
How can I get the 'x' to display on my story?
It is not mentioned in the bookend.json file configuration in the documentation and doesn't display 'out of the box'.
Thanks for all the help!
