Received HTTP error code 400 while fetching source feed.
When I try to retrieve the feed using wget, I get an error about the self-signed certificate:
$ LANG=en_US wget -vvvv https://<FQDN>/redmine/projects/<project-id>/activity.atom?key=<40-char-key>
--2013-05-26 14:35:31-- https://<FQDN>/redmine/projects/<project-id>/activity.atom?key=<40-char-key>
Resolving <FQDN> (<FQDN>)... <IPv4 Address>
Connecting to <FQDN> (<FQDN>)|<IPv4 Address>|:443... connected.
ERROR: cannot verify <FQDN>'s certificate, issued by '<Issuer>':
Self-signed certificate encountered.
To connect to <FQDN> insecurely, use `--no-check-certificate'.
Note that wget does not report an HTTP error code but refuses to continue without verifying the certificate. So the error message issued by feedburner seems at least misleading.
I have stumbled upon a solution which basically is to serve the feed without SSL via port 80 and all other content with SSL via port 443.
This solution needs but server-side configuration that is not an option in my case, since I do not have control over the server.
Kind Regards,
Bengt Lüers