Unable to use this plugin with emqttd

[omkarnathsingh]

When after enabling coap plugin from dashboard of emqttd, When I test the thing using "coap.me" website, I get following error log in console.

`12:33:02.928 [error] {badarg,[{erlang,binary_to_list,"m",[]},{core_link,join_uri,1,[{file,"src/core_link.erl"},{line,54}]},{core_link,encode_link_uri,2,[{file,"src/core_link.erl"},{line,48}]},{core_link,encode_link_value,1,[{file,"src/core_link.erl"},{line,37}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{coap_server_content,coap_get,4,[{file,"src/coap_server_content.erl"},{line,23}]},{coap_responder,invoke_callback,3,[{file,"src/coap_responder.erl"},{line,278}]},{coap_responder,check_resource,3,[{file,"src/coap_responder.erl"},{line,142}]}]}`

Any quickfix for the same?