encoding/json: parsing comma in value to []byte field fails

[tehsphinx]

What version of Go are you using (go version)?

go version go1.10 darwin/amd64

What did you do?

Parsing a json with a comma in the value will fail if the target variable is []byte and not string:
https://play.golang.org/p/5dDCW9mwDv8

What did you expect to see?

Unmarshalled json object

What did you see instead?

Error:
illegal base64 data at input byte 4

[tehsphinx]

Or is this behavior intended?

[tehsphinx]

It is intended.

Explanation for others looking at this: if target field is of type []byte json library expects data to be base64 encoded. It data is not base64 encoded use a field of type string as target on unmarshalling.