https://github.com/UdashFramework/scala-js-jquery/blob/6d8ee18f015a3ebceee5363443b6e58d64f1a4e3/src/main/scala/io/udash/wrappers/jquery/JQueryAjax.scala#L70 https://github.com/UdashFramework/scala-js-jquery/blob/6d8ee18f015a3ebceee5363443b6e58d64f1a4e3/src/main/scala/io/udash/wrappers/jquery/JQueryAjax.scala#L139 https://github.com/UdashFramework/scala-js-jquery/blob/6d8ee18f015a3ebceee5363443b6e58d64f1a4e3/src/main/scala/io/udash/wrappers/jquery/JQueryAjax.scala#L160 In the JQueryAjaxSettings's `apply` method, the `error` parameter don't confirm the model's `def error` fileld's type.