Try to remove
from your form.
i have tested, but from some my private network, when i click on Upload button, him get "Server error" message under the file, while from work, him work succesfully !?!?!?!?!?!?
i have tested two different wifi private connection :-/ "Server error"
any idea ?
thanks in advance
1) So it works but not everywhere. Does it?
2) If you have any errors please post the stack trace of the exception.
3) May be your computers have a non-stable connection through WiFi and thus the upload crashes.