Core htmx AJAX Tests

• properly handles clicked submit button with a value outside a htmx form480ms ‣

  var values
  this.server.respondWith('Post', '/test', function(xhr) {
    values = getParameters(xhr)
    xhr.respond(204, {}, '')
  })
  make('<form id="externalForm" hx-post="/test">' +
          '<input type="text" name="t1" value="textValue">' +
          '</form>' +
          '<button id="submit" form="externalForm" type="submit" name="b1" value="buttonValue">button</button>')
  byId('submit').click()
  this.server.respond()
  values.should.deep.equal({ t1: 'textValue', b1: 'buttonValue' })