On the whole I am very happy with Go, but this did bite me recently. We're using the X509 package which is returning an error on a handful of CA certificates due to characters that are not technically allowed in an ASN.1 PrintableString field (E.G `&`). Sure, fine, we've already forked the package so it's easy to make the change to be more lenient. Except errors don't contain any information about the origin of the error in source code, so it's been down to painful debugging and source code digging to find where this check is being made.If anyone has a less painful way to do this, please halp.
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