Error trying to connect to websocket (unhandled exception)

[leith]

Expecting
To connect a websocket via async-websockets running on falcon-guard (or falcon)

Result
Socket closes with code 1006, this trace is printed to the falcon log:

18.55s     warn: Async::Task [oid=0xe484] [ec=0xe2e0] [pid=91248] [2022-08-05 07:14:37 +0000]
               | Task may have ended with unhandled exception.
               |   ArgumentError: wrong number of arguments (given 1, expected 0)
               |   → /var/lib/gems/2.7.0/gems/async-io-1.33.0/lib/async/io/stream.rb:216 in `close'
               |     /var/lib/gems/2.7.0/gems/protocol-http-0.22.6/lib/protocol/http/body/readable.rb:75 in `ensure in call'
               |     /var/lib/gems/2.7.0/gems/protocol-http-0.22.6/lib/protocol/http/body/readable.rb:75 in `call'
               |     /var/lib/gems/2.7.0/gems/async-http-0.56.6/lib/async/http/protocol/http1/server.rb:82 in `each'
               |     /var/lib/gems/2.7.0/gems/async-http-0.56.6/lib/async/http/server.rb:56 in `accept'
               |     /var/lib/gems/2.7.0/gems/async-io-1.33.0/lib/async/io/server.rb:32 in `block in accept_each'
               |     /var/lib/gems/2.7.0/gems/async-io-1.33.0/lib/async/io/ssl_socket.rb:145 in `block in accept'
               |     /var/lib/gems/2.7.0/gems/async-1.30.3/lib/async/task.rb:261 in `block in make_fiber'
               |   Caused by RuntimeError: No async task available!
               |   → /var/lib/gems/2.7.0/gems/async-1.30.3/lib/async/task.rb:189 in `current'
               |     /var/lib/gems/2.7.0/gems/async-http-0.56.6/lib/async/http/body/hijack.rb:78 in `read'
               |     /var/lib/gems/2.7.0/gems/protocol-http-0.22.6/lib/protocol/http/body/readable.rb:86 in `each'
               |     /var/lib/gems/2.7.0/gems/rack-2.2.4/lib/rack/body_proxy.rb:41 in `method_missing'
               |     /var/lib/gems/2.7.0/gems/rack-2.2.4/lib/rack/body_proxy.rb:41 in `method_missing'
               |     /var/lib/gems/2.7.0/gems/guard-2.18.0/bin/_guard-core:in `each'

Offlist conversation with @ioquatix seems to indicate the problem is here, as we've ended up with an Async::IO instance, which doesn't take any arguments for its close() method.

Presumably the same thing will apply on line 90.

[ioquatix]

I didn't add a repro, which I think we should.

[ioquatix]

#16

[ioquatix]

This should be fixed.