I'm trying to figure out how parameters in URL are passed to doGet()
function.
I tried to do
https://script.google.com/a/macros/[my domain].com/s/[some random string generated by GAS]
followed by "&variable=data"
but it only gave me this error: "Sorry, the file you have requested does not exist."
FYI, https://script.google.com/a/macros/[my domain].com/s/[some random string generated by GAS]
works well without "&variable=data".