feat: add browser <-> nodejs test

[daviddias]

wip

• added test
• fix libp2p-websockets fix: onConnect does not follow callback pattern js-libp2p-websockets#36
• fix secio

[daviddias]

Fails here with this error:

  1) secio browser <-> nodejs encrypt:
     AssertionError: expected { isTrusted: [Getter],
  NONE: 0,
  CAPTURING_PHASE: 1,
  AT_TARGET: 2,
  BUBBLING_PHASE: 3,
  MOUSEDOWN: 1,
  MOUSEUP: 2,
  MOUSEOVER: 4,
  MOUSEOUT: 8,
  MOUSEMOVE: 16,
  MOUSEDRAG: 32,
  CLICK: 64,
  DBLCLICK: 128,
  KEYDOWN: 256,
  KEYUP: 512,
  KEYPRESS: 1024,
  DRAGDROP: 2048,
  FOCUS: 4096,
  BLUR: 8192,
  SELECT: 16384,
  CHANGE: 32768,
  type: [Getter],
  target: [Getter],
  currentTarget: [Getter],
  eventPhase: [Getter],
  bubbles: [Getter],
  cancelable: [Getter],
  defaultPrevented: [Getter],
  timeStamp: [Getter],
  path: [Getter],
  srcElement: [Getter],
  returnValue: [Getter/Setter],
  cancelBubble: [Getter/Setter],
  stopPropagation: [Function: stopPropagation],
  stopImmediatePropagation: [Function: stopImmediatePropagation],
  preventDefault: [Function: preventDefault],
  initEvent: [Function: initEvent],
  composed: [Getter],
  composedPath: [Function: composedPath] } to not exist

[daviddias]

wait, it doesn't yield a wrapped encrypted conn?

[daviddias]

This is kind of misleading, saying it returns a 'insecure connection'

[daviddias]

I was just very confused by seeing CI green but locally seeing tests failing. It seems aegir doesn't exist(1) when tests fail in the browser

https://travis-ci.org/libp2p/js-libp2p-secio/jobs/174449763#L1399

[dignifiedquire]

doesn't exist(1) when tests fail in the browser

Yes that is what I had to do, to make Sauce Labs not make all CI red

[dignifiedquire]

The underlying reason for the failure to communicate between node.js and the browser is found in libp2p/js-libp2p-crypto#29

[dignifiedquire]

Ready for review and passing with libp2p/js-libp2p-crypto#29