| Subject: | Setting of User-Agent probably does not work |
Looking at https://metacpan.org/source/TLINDEN/WWW-Dict-Leo-Org-2.02/Org.pm#L164 it seems that the HTTP header field name ("User-Agent:") is missing here. Probably the request used to work as there's a colon in the User-Agent value, so probably the header field name was "Mozilla/5.0 (Windows NT 6.3; rv" and the field value was "36.0) Gecko/20100101 Firefox/36.0".
Related to the User-Agent: there are some places (documentation, comment) where it's stated that "Konqueror" is used as the User-Agent, which does not seem to be the case now --- currently it looks like (an old version of) Firefox.