[bug] File download works in Safari but does not work in Tauri on Mac

[kirill-konshin]

Describe the bug

Simple code to download as Blob does not work in Tauri, but works in Safari.

No dialog window to save file is shown, no errors in console.

I also tried file-saver NPM package, got error: top frame not allowed to naigate to data URL (also works well in Safari).

Safari version 17.1.2 (19616.2.9.11.12).

Reproduction

    const element = document.createElement("a");
    element.setAttribute("href", URL.createObjectURL(new Blob([text], { type: mimeType })));
    element.setAttribute("download", filename);

    element.style.display = "none";
    document.body.appendChild(element);

    element.click();

    document.body.removeChild(element);

Expected behavior

File download dialog.

Full tauri info output

[⚠] Environment
    - OS: Mac OS 14.1.2 X64
    ✔ Xcode Command Line Tools: installed
    ✔ rustc: 1.74.0 (79e9716c9 2023-11-13) (Homebrew)
    ✔ cargo: 1.74.0
    ⚠ rustup: not installed!
      If you have rust installed some other way, we recommend uninstalling it
      then use rustup instead. Visit https://rustup.rs/
    ⚠ Rust toolchain: couldn't be detected!
      Maybe you don't have rustup installed? if so, Visit https://rustup.rs/
    - node: 21.5.0
    - yarn: 4.0.2
    - npm: 10.2.4

[-] Packages
    - tauri [RUST]: 1.5.3
    - tauri-build [RUST]: 1.5.0
    - wry [RUST]: 0.24.6
    - tao [RUST]: 0.16.5
    - @tauri-apps/api : not installed!
    - @tauri-apps/cli [NPM]: 1.5.9

[-] App
    - build-type: bundle
    - CSP: unset
    - distDir: public
    - devPath: http://localhost:3000/

Stack trace

No response

Additional context

No response

[kirill-konshin]

Found article https://davelage.com/posts/tauri-save-files/ which says "Possibly there will be APIs that allow this to happen through the browser interface in the future." — PR tauri-apps/wry#530 has been merged, but looks like not yet supported.

[FabianLars]

Duplicate of #4633 - thanks for reaching out :)