Hi There, cowboy_req:reply/4 fails with {reason,badarg} for erlang:iolist_size when unicode characters are present in the html page. Cowboy version 2.0 What am I missing? Thanks, Theepan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://erlang.org/pipermail/erlang-questions/attachments/20191226/382052f3/attachment.htm>