Hi c0ldlimit,
I responded by email. Below is the response in case others may find it useful.
My app expects a URL to end in a valid filename + extension. Assume your URL is
https://abc.com?code=defTry using
https://abc.com?code=def&/pic.jpgThe “&” is a start of an additional parameter. (The first parameter uses ?)
After that we put a slash and a file name to use when storing on the device. The URL should still work and it has the information the app expects (a slash and file name at end)