I'm currently working on a web-application that is built using a series of linked StoryMaps. It's coming together really well, but I've run into an issue that I haven't been able to sort out yet. I've been able to change link behaviour from opening in new window/tab for other links by altering the attribute from _blank to _self in the StoryMap JSON through the ArcGIS Online Administator.
However, I'm not able to change behaviour for the link in the StoryMap Header. There's no HTML I can see for the link, simply a string (linkURL) containing a URL in the JSON object marked header (see attached example)
"linkText": "back to the Atlas",