hx-boost attribute

• form get with an unset action properly submits9ms ‣

  this.server.respondWith('GET', /\/*/, function(xhr) {
    xhr.respond(200, {}, 'Boosted!')
  })
  var div = make('<div hx-target="this" hx-boost="true"><form id="f1" method="get"><button id="b1">Submit</button></form></div>')
  var btn = byId('b1')
  btn.click()
  this.server.respond()
  div.innerHTML.should.equal('Boosted!')