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Phoenix: cowboy error on every HTTP request

/phoenix#cowboy
sribe

sribe

Phoenix: cowboy error on every HTTP request

[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.)

10 comments
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sribe

sribe

Yes, Cowboy 2 adds HTTP2 support, and that is in fact the source of the API incompatibility–new HTTP features.

1
Post #6
OvermindDL1

OvermindDL1

Current Plug/Phoenix master has Cowboy2 support, they are just finishing refining it but you can use it now if you want to play with it.

1
Post #9

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