[Webkit-unassigned] [Bug 275288] New: Installed PWA not downloading pictures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=275288

            Bug ID: 275288
           Summary: Installed PWA not downloading pictures
           Product: WebKit
           Version: Safari 17
          Hardware: iPhone / iPad
                OS: iOS 17
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: laszlo.alt at gmail.com
                CC: sabouhallawa at apple.com

When visiting a PWA from Safari mobile and downloading a picture, the download prompt appears and asks the user to download, upon clicking it will save the file to downloads folder.

If you add/install the PWA to the Home screen, the download no longer works at all and shows no indication of a download. 

Android with Chrome behaviour appears to be similar to the non-installed PWA in iOS/Safari for these downloads.

Here is the example JS/TS used for the reproduction (blob is already a smaller/compressed picture)
const url = URL.createObjectURL(blob);
    const link = document.createElement('a');
    link.href = url;
    link.download = fileName;
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
    URL.revokeObjectURL(url);

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