Errors are not reflected in server UI

[relikd]

I've just started the server and added a file for upload. Then waited 5 minutes without any result. Only after anaylzing the file directly I saw there was an issue with the input:

$> ./stacoan -p sample.ipa 
[INFO] Decompiling app...
[ERROR] .ipa files not implemented yet.
$> ./stacoan -p sample.app 
[INFO] Decompiling app...
[ERROR] No mobile app detected, exiting! Hgnnnhh

The web server UI should reflect any errors and notify the user there was an issue with the provided file. Instead it indefinitely shows the 'Uploading…' message.