How to open with the native browser a pdf received in an http response

Hi, I am building an app with Ionic an Angular. I have an endpoint which returns a pdf file attached in the http response. I want to open that pdf in the native browser.

I have written this code, in the browser the file is downloaded, but in Android it does not do anything

  public downloadCertificate(courseId: number): void {
      (response) => {
        const blob = new Blob([response], { type: 'application/pdf' });

        // Create a link pointing to the ObjectURL containing the blob.
        const data = window.URL.createObjectURL(blob);

        const link = document.createElement('a');
        link.href = data; = 'certificate.pdf';

        link.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true, view: window }));

        setTimeout(function () {
        }, 100);


I also tried to use this Capacitor Plugin. Do you know what is wrong in my code ?