The file needs to be served either by using http-in/out nodes or by setting up a static entry in settings.js file.
See this post: Refer in node to flows location / Serve files from flows location - #2 by Steve-Mcl
The file needs to be served either by using http-in/out nodes or by setting up a static entry in settings.js file.
See this post: Refer in node to flows location / Serve files from flows location - #2 by Steve-Mcl