No, there is no stacktrace in the logs only the warning. Also I have tried passing the stream as payload but I get an error there as well. Its stacktrace is:
File "/base/data/home/apps/s~app-id/1.357014326405166801/applications/ abc/controllers/xyz.py:download", line 384, in report_download File "/base/data/home/apps/s~app-id/1.357014326405166801/gluon/ tools.py", line 132, in __init__ payload = read_file(payload, 'rb') File "/base/data/home/apps/s~app-id/1.357014326405166801/gluon/ fileutils.py", line 46, in read_file f = open(filename, mode) IOError: [Errno 13] Permission denied Is it possible to attach the stream in mail or even blobstore file? Thanks