I had managed to deal with websockets nicely before git pull latest version of cocos2d-x today. 
I’m not family with gdb or MacOS dev, so this is my best effort to try to debug.
fyi, previous version of cocos2d-x had a crash whenever web sockets got closed, but with this build I get crashes whenever I try to connect! (WORSE)
Android claims a crash like below:
14557 cocos2d-x debug info D [WebSocket::init] *host: somesecretaddress,*port: 80, path: /websocket
14557 cocos2d-x debug info D JS: ws://somesecretaddress.com/websocket
14557 cocos2d-x debug info D JS: web socket connecting
1371 DEBUG I #01 pc 0084c7f0 /data/data/com…one/lib/libcocos2djs.so
1371 DEBUG I 5fad0df0 5da91798 /data/data/com…one/lib/libcocos2djs.so
1371 DEBUG I 5fad0df4 5dc48594 /data/data/com…one/lib/libcocos2djs.so
1371 DEBUG I 5fad0e24 5da958bc /data/data/com.**.one/lib/libcocos2djs.so
xCode crashes at
error: address doesn’t contain a section that points to a section in a object file
0x6779bb: calll 0x677400 ;_libwebsocket_client_connect_2
0x6779c0: jmp 0x6778f2 ; libwebsocket_client_connect + 482
0x6779c5: nopw cs:(eax,%eax)