diff options
Diffstat (limited to 'src/cowboy_websocket.erl')
| -rw-r--r-- | src/cowboy_websocket.erl | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/cowboy_websocket.erl b/src/cowboy_websocket.erl index 3ec9f9a..d38c673 100644 --- a/src/cowboy_websocket.erl +++ b/src/cowboy_websocket.erl @@ -144,23 +144,27 @@ websocket_extensions(State=#state{extensions=Extensions}, Req=#{pid := Pid}, [{<<"permessage-deflate">>, Params}|Tail], RespHeader) -> %% @todo Make deflate options configurable. Opts = #{level => best_compression, mem_level => 8, strategy => default}, - case cow_ws:negotiate_permessage_deflate(Params, Extensions, Opts#{owner => Pid}) of + try cow_ws:negotiate_permessage_deflate(Params, Extensions, Opts#{owner => Pid}) of {ok, RespExt, Extensions2} -> websocket_extensions(State#state{extensions=Extensions2}, Req, Tail, [<<", ">>, RespExt|RespHeader]); ignore -> websocket_extensions(State, Req, Tail, RespHeader) + catch exit:{error, incompatible_zlib_version, _} -> + websocket_extensions(State, Req, Tail, RespHeader) end; websocket_extensions(State=#state{extensions=Extensions}, Req=#{pid := Pid}, [{<<"x-webkit-deflate-frame">>, Params}|Tail], RespHeader) -> %% @todo Make deflate options configurable. Opts = #{level => best_compression, mem_level => 8, strategy => default}, - case cow_ws:negotiate_x_webkit_deflate_frame(Params, Extensions, Opts#{owner => Pid}) of + try cow_ws:negotiate_x_webkit_deflate_frame(Params, Extensions, Opts#{owner => Pid}) of {ok, RespExt, Extensions2} -> websocket_extensions(State#state{extensions=Extensions2}, Req, Tail, [<<", ">>, RespExt|RespHeader]); ignore -> websocket_extensions(State, Req, Tail, RespHeader) + catch exit:{error, incompatible_zlib_version, _} -> + websocket_extensions(State, Req, Tail, RespHeader) end; websocket_extensions(State, Req, [_|Tail], RespHeader) -> websocket_extensions(State, Req, Tail, RespHeader). |