Core htmx Shadow DOM Tests

• errors are triggered only on 400+7ms ‣

  var errors = 0
  var handler = htmx.on('htmx:responseError', function() {
    errors++
  })
  this.server.respondWith('GET', '/test1', function(xhr) {
    xhr.respond(204, {}, 'Clicked!')
  })
  this.server.respondWith('GET', '/test2', function(xhr) {
    xhr.respond(400, {}, 'Clicked!')
  })
  var btn1 = make('<button hx-get="/test1">Click Me!</button>')
  var btn2 = make('<button hx-get="/test2">Click Me!</button>')
  btn1.click()
  btn2.click()
  this.server.respond()
  this.server.respond()
  errors.should.equal(1)
  htmx.off('htmx:responseError', handler)