Hi,
The problem I encountered was that when I didn't edit and save the file, everything was fine. But when I edited it, the server responded
"The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters."
This is the handling part at the client
And this is the server part
I really need your help, hope you will reply me soon.
Thanks!
Nguyen