Mini Apps - downloads inside apps are not possible

[Prooksius]

Select platforms where this bug is reproducible:

• [ x] Telegram for Android
• [ x] Telegram for iOS
• [ ] Telegram for macOS
• [ x] Telegram Desktop
• [ x] Telegram Web A
• [ x] Telegram Web K

Describe the bug

There is a link in my Mini app, click on it downloads a generated image (qr code) into local file system. When I open my app by direct link, without telegram - downloading preforms as expected. When my app is being opened though telegram - download is not being performed. Tried on all platforms marked [x] above.

Also tried to debug this situation in telegram web version (Web A). Here is what warning I've got in console: "Download is disallowed. The frame initiating or instantiating the download is sandboxed, but the flag ‘allow-downloads’ is not set. See https://www.chromestatus.com/feature/5706745674465280 for more details."

Expected behavior

There has to be some setting that allows to download files inside the Mini app.

[avganka]

I'm also interested in that point

[Prooksius]

I've found some sort of a workaround for downloading in MiniApp. It is possible to send images/files to the user through a bot, that is launching my Mini-App. https://core.telegram.org/bots/api#sendphoto - for images https://core.telegram.org/bots/api#senddocument - for other files chat_id is accessible in InitData structure in MiniApp. The only important thing - it has to be done on the server, not browser, for the security reasons.

[heyqbnk]

Implemented since 8.0