That is not all the code. You don't show how you send it to the server, and you didn't show the code on the server. We can't tell what you actually sent, and if you sent the correct string, we can't tell you where the algorithm on the client differs from the one on the server if we only see one.

We may also be able to deduce the difference if we knew the exact output of the server's decode. (The "additional characters" you mentioned.)

In reply to Re^3: Base64 Encoding by ikegami
in thread Base64 Encoding by mikemc24

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