vue http页面新开窗口跳转https页面

动态创建a标签 http跳转https
    methods: {
      open(url, rel, target) {
        var a = document.createElement("a");
        a.href = url;
        a.target = target;
        a.rel = rel;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a)
      }
    },
    mounted() {
      getHikvisionUrl().then(res => {
        let url = res.data + '';
        this.open(url,'noreferrer','_blank')
      });
    }