如何在角度6中绕过弹出窗口拦截器？

Question

我想在点击预览按钮时显示pdf，但在新标签页中打开时pdf被阻止..所以，我想通过浏览器的弹出窗口阻止属性

     getPdf(projectId) {
this.http.get(environment.apiUrl + "/poject/getPdf/" + projectId + '/' + this.userDataSession.userDetailsId + '/' + 8 + '/' + this.authService.getUserToken(), { responseType: 'blob' })
  .subscribe((blob: Blob) => {
    let url = URL.createObjectURL(blob);
    let link = document.createElement("a");
    if (link.download !== undefined) {
      let url = URL.createObjectURL(blob);
      let win = window.open(url, '_blank');
      win.focus();
      link.style.visibility = 'hidden';
      document.body.appendChild(link);
      link.click();
      document.body.removeChild(link);
    }

  });

}

这是我从服务器访问pdf并希望在新窗口中显示但浏览器阻止弹出窗口的方式

Answer 1

下面的代码将帮助您打开附件（在新窗口中的文件），而无需弹出窗口阻止程序

getPdf(projectId) {
  let newWindow = window.open();//OPEN WINDOW FIRST ON SUBMIT THEN POPULATE PDF
  this.http.get(environment.apiUrl + "/PROJECT/getPdf/" + projectId + '/' + this.userDataSession.userDetailsId + '/' + 9 + '/' + this.authService.getUserToken(), { responseType: 'blob' })
    .subscribe((blob: Blob) => {
      let file = new Blob([blob], { type: 'application/pdf' });
      let url = URL.createObjectURL(file);
      this.router.navigate([url]);
      newWindow.location.href = url;//POPULATING PDF 
    });
}