Socket.io-client: Can´t catch ERR_CONNECTION_REFUSED

• [x] report a bug
• [ ] request a feature

Current behaviour

I cant catch the "ERR_CONNECTION_REFUSED" error when the socket connection is killed.

I have the following Event-Listener in my Code:

           this.socket.on('error', (err) => {
                console.log('Error connecting to server', err);
            });

            this.socket.on('disconnect', () => {
                console.log('Disconnect from server');
            });

            this.socket.on('reconnect', (number) => {
                console.log('Reconnected to server', number);
            });

            this.socket.on('reconnect_attempt', () => {
                console.log('Reconnect Attempt');
            });

            this.socket.on('reconnecting', (number) => {
                console.log('Reconnecting to server', number);
            });

            this.socket.on('reconnect_error', (err) => {
                console.log('Reconnect Error', err);
            });

            this.socket.on('reconnect_failed', () => {
                console.log('Reconnect failed');
            });

            this.socket.on('connect_error', () => {
                console.log('connect_error');
            });

and got this Error on Chrome console:

socket connected
socket.io.service.ts:69 Disconnect from server
socket.io.service.ts:83 Reconnect Attempt
socket.io.service.ts:90 Reconnecting to server 1
zone.js:1382 GET https://XXX:3000/socket.io/?auth_token=XXX&EIO=3&transport=polling&t=LXY2NwI net::ERR_CONNECTION_REFUSEDscheduleTask @ zone.js:1382ZoneDelegate.scheduleTask @ ...
socket.io.service.ts:111 connect_error
socket.io.service.ts:97 Reconnect Error Error: xhr poll error(…)
socket.io.service.ts:83 Reconnect Attempt
socket.io.service.ts:90 Reconnecting to server 2
...

Steps to reproduce (if the current behaviour is a bug)

Start a working app and stop the socket-server.

Setup

• OS: macOS Sierra & Linux Debian Jessie
• browser: Chrome
• socket.io version: 1.5.1