401在javascript中对JQuery.ajax GET请求未授权

Question

我正在为下面的ajax电话获得“401未授权”，

version: '3.1'
services:
  node:            <---- Name of service in the container
    build:
      context: .
      args:
        - NODE_ENV=development
    command: ../node_modules/.bin/nodemon ./bin/www --inspect=0.0.0.0:9229
    ports:
      - "80:80"
      - "5858:5858"
      - "9229:9229"
    volumes:
      - .:/opt/app
      # this is a workaround to prevent host node_modules from accidently getting mounted in container
      # in case you want to use node/npm both outside container for test/lint etc. and also inside container
      # this will overwrite the default node_modules dir in container so it won't conflict with our
      # /opt/node_modules location. Thanks to PR from @brnluiz
      - notused:/opt/app/node_modules
    environment:
      - NODE_ENV=development
    # tty: true            ## tested, not needed
    # stdin_open: true     ## tested, not needed
volumes:
    notused:

所以我尝试使用XMLHttpRequest创建相同的内容，如下所示

jQuery.ajax({
                url: url1,
                headers: { "Authorization": "Basic Auth"},
                dataType: "json",
                type: "GET",
                timeout: 190000,
                success: response3 });

它工作正常。 JQuery.ajax中的问题是什么？以及为什么使用XMLHttpRequest正常工作？