I've downloaded the swipe story map to host on our servers because I need to modify it slightly. I have the hosted code on my test servers and it's working, but I'm seeing these errors in the Chrome console:
Uncaught TypeError: f.contains is not a function
at Object.isDescendant (init.js:97)
at HTMLDivElement.<anonymous> (init.js:184)
init.js is https://js.arcgis.com/3.19/init.js hence why I think this may be an issue with the latest release of the api rather than a specific issue with the story map.
The errors appear when I move the mouse over the righthand side of the swipe map.
Can anyone tell me what's happening?