Fix base64 error when input is multiple of 4 bytes #1
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The
base64Decode
function was incorrectly re-adding padding when the input is a multiple of 4 bytes. These input lengths should have no padding, but it was adding 1, which led to an error:The base64 package has options to omit padding using
WithPadding(base64.NoPadding)
[1], and also defines Raw versions of the pre-defined encoders[2]. This therefore updates the functions to use these encoders instead, which means they're now just simple wrappers.[1]https://pkg.go.dev/encoding/base64#Encoding.WithPadding
[2]https://pkg.go.dev/encoding/base64#pkg-variables