Base64 data; should I include the "data:xxx" before the actual base64?

Question

I need to send an image that has been converted to base64 by JavaScript, to a server. Lets assume I don't know anything about the server, except where to send the data. The image is a .jpg, so when JavaScript converted it, it prepended data:image/jpeg;base64 to the actual base64 data. So the result is something like this:

data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEA8ADwAAD/4V3gRXhpZgAATU0AKgAAAAg [...]

When researching on this topic, I found posts on SO that say keeping it will invalidate the base64 (here).

So, in general, should I strip the data:image/jpeg;base64 or keep it?

Since `,` isn't a valid base64 character, you can easily split the string on the comma and get the last segment. — Scuzzy, Oct 20 '15 at 00:13
Thanks. Follow up question: why does JS insert that there then? — somebodysomewhere, Oct 20 '15 at 00:14

score 1 · Accepted Answer · answered Oct 20 '15 at 00:10

1

You will definitely need to remove the data:image/jpeg;base64, if the server is only expecting a base64 string. If you don't know anything about the server, make sure it's setup to receive a base64 file at the very least.

answered Oct 20 '15 at 00:10

David Boskovic

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Base64 data; should I include the "data:xxx" before the actual base64?

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