read_line? should return nil on timeout and any other error, basically.

Author: ioquatix

lib/async/http/protocol/http1/connection.rb

@@ -43,7 +43,8 @@ def http2?
 
 					def read_line?
 						@stream.read_until(CRLF)
-					rescue Errno::ECONNRESET
+					rescue => error
+						# Bascially, any error will cause the connection to be closed:
 						return nil
 					end