Opening PDF file in new tab angular 4?

问题

I tried opening a PDF file using the window.open(), but the window opens and closes automatically and the file is downloaded like any other file. How to make the pdf file open in new tab? There are no ad blockers installed.

回答1:

From @barbsan idea, I changed the http headers and received a blob and used that to display the blob as pdf using window.open(). It worked.

Here is my sample code.

In service file

downloadPDF(url): any {
    const options = { responseType: ResponseContentType.Blob  };
    return this.http.get(url, options).map(
    (res) => {
        return new Blob([res.blob()], { type: 'application/pdf' });
    });
  }

In component file

this.dataService.downloadPDF(url).subscribe(res => {
  const fileURL = URL.createObjectURL(res);
  window.open(fileURL, '_blank');
});

回答2:

One liner solution to open a pdf file in new tab. You just need to have file url and use this function on button click.

window.open(url, '_blank');

回答3:

you need user the "target="_blank" in the tag ;

exemple: <a target="_blank" href="https://www.google.com/"> </a>

回答4:

you can display pdf fle in new tab by the line:

window.open(fileUrl, '_blank');

The fileUrl is a variable that contains the file path.

来源：https://stackoverflow.com/questions/51204276/opening-pdf-file-in-new-tab-angular-4