Unable to export model

[ksurya]

If you'd like to report a bug, please include the following information:

• the expected behaviour: download model file
• the observed behaviour: no download
• steps to reproduce the problem: (a) select a seq2seq model from zoo (b) click Export - Keras/Caffe/TF
• which operating system and/or browser you're using, if relevant: Chrome/Safari
• (if possible) copies of the console/server logs: