Failed to start child: {AppWeb.Endpoint, :https} {:options, :incompatible, [:secure_renegotiate, {:versions, [:"tlsv1.3"]}]} #6557
Description
Environment
- Elixir version (elixir -v): Elixir 1.19.4 (compiled with Erlang/OTP 28)
- Phoenix version (mix deps): 1.8.3
- Operating system: Debian (docker image hexpm/elixir:1.19.4-erlang-28.2-debian-bullseye-20251117-slim
Actual behavior
Hi. I am trying to use https options for fresh phoenix install with certificates generated by mix phx.gen.cert and config:
config :app, AppWeb.Endpoint,
http: [ip: {0, 0, 0, 0}, port: 80],
https: [
port: 443,
cipher_suite: :strong,
otp_app: :app,
keyfile: "priv/cert/selfsigned_key.pem",
certfile: "priv/cert/selfsigned.pem"
],And trying to start the server with mix phx.server I am getting this error:
app-1 | Compiling 15 files (.ex)
app-1 | Generated app app
app-1 | [info] Running AppWeb.Endpoint with Bandit 1.8.0 at 0.0.0.0:80 (http)
app-1 | [notice] Application app exited: App.Application.start(:normal, []) returned an error: shutdown: failed to start child: AppWeb.Endpoint
app-1 | ** (EXIT) shutdown: failed to start child: {AppWeb.Endpoint, :https}
app-1 | ** (EXIT) shutdown: failed to start child: :listener
app-1 | ** (EXIT) {:options, :incompatible, [:secure_renegotiate, {:versions, [:"tlsv1.3"]}]}
app-1 | [notice] Application tailwind exited: :stopped
app-1 | [notice] Application esbuild exited: :stopped
app-1 | [notice] Application phoenix_live_reload exited: :stopped
app-1 | [notice] Application file_system exited: :stopped
app-1 | [notice] Application dns_cluster exited: :stopped
app-1 | [notice] Application gettext exited: :stopped
app-1 | [notice] Application expo exited: :stopped
app-1 | [notice] Application telemetry_poller exited: :stopped
app-1 | [notice] Application swoosh exited: :stopped
app-1 | [notice] Application req exited: :stopped
app-1 | [notice] Application finch exited: :stopped
app-1 | [notice] Application nimble_options exited: :stopped
app-1 | [notice] Application nimble_pool exited: :stopped
app-1 | [notice] Application mint exited: :stopped
app-1 | [notice] Application idna exited: :stopped
app-1 | [notice] Application unicode_util_compat exited: :stopped
app-1 | [notice] Application xmerl exited: :stopped
app-1 | [notice] Application phoenix_live_dashboard exited: :stopped
app-1 | [notice] Application telemetry_metrics exited: :stopped
app-1 | [notice] Application phoenix_live_view exited: :stopped
app-1 | [notice] Application ecto_sql exited: :stopped
app-1 | [notice] Application phoenix_ecto exited: :stopped
app-1 | [notice] Application postgrex exited: :stopped
app-1 | [notice] Application db_connection exited: :stopped
app-1 | [notice] Application ecto exited: :stopped
app-1 | [notice] Application phoenix exited: :stopped
app-1 | [notice] Application jason exited: :stopped
app-1 | [notice] Application decimal exited: :stopped
app-1 | [notice] Application websock_adapter exited: :stopped
app-1 | [notice] Application bandit exited: :stopped
app-1 | [notice] Application hpax exited: :stopped
app-1 | [notice] Application thousand_island exited: :stopped
app-1 | [notice] Application websock exited: :stopped
app-1 | [notice] Application phoenix_template exited: :stopped
app-1 | [notice] Application phoenix_html exited: :stopped
app-1 | [notice] Application phoenix_pubsub exited: :stopped
app-1 | [notice] Application plug exited: :stopped
app-1 | [notice] Application telemetry exited: :stopped
app-1 | [notice] Application plug_crypto exited: :stopped
app-1 | [notice] Application mime exited: :stopped
app-1 | [notice] Application eex exited: :stopped
app-1 | [notice] Application runtime_tools exited: :stopped
app-1 | ** (Mix) Could not start application app: App.Application.start(:normal, []) returned an error: shutdown: failed to start child: AppWeb.Endpoint
app-1 | ** (EXIT) shutdown: failed to start child: {AppWeb.Endpoint, :https}
app-1 | ** (EXIT) shutdown: failed to start child: :listener
app-1 | ** (EXIT) {:options, :incompatible, [:secure_renegotiate, {:versions, [:"tlsv1.3"]}]}
app-1 exited with code 1
Could you please help to understand the issue?
Thank you!
Expected behavior
Server is up and running for http and https.