The docs do say "a field with tag ",innerxml" is written verbatim, not subject to the usual marshalling procedure". I feel like we probably can't change the behavior at this point.

What made you think that ampersands would be escaped?

I got problems when using xmllint or parsing the file using python so I imagined it was an error.

I understand it, the user has to provide a valid value for the field. I'm sorry about it.

If you need automatic escaping you should use ,chardata: https://play.golang.org/p/nJEc61MqkK

@kostya-sh this is great! :)

Thanks.