[error] Ranch protocol :error (:cowboy_protocol) of listener UrlFetcher.Endpoint.HTTP terminated
** (exit) :undef
15:07:19.288 [error] Ranch listener ‘Elixir.UrlFetcher.Endpoint.HTTP’ connection process start failure; cowboy_protocol:start_link/4 crashed with reason: error:undef
Any idea where to look? I have renamed some files & modules, which is of course an immediate suspect for this error. But I’ve double-checked everything; deleted the _build folder; and I don’t see anything wrong in the project.
(I have added gRPC modules; but I don’t see how they could affect this.)
Hi, just saw this. I just use the commit in this PR to support Trailers in HTTP/2 https://github.com/ninenines/cowboy/pull/1020 . But I don’t think it’s related to your problem. And maybe it’s not a good idea to use Cowboy2 with Phoenix before the stable version is released.