View Once Interface allows others to keep the image by screenshotting the image

[Reshyurem]

Bug description

I have noticed that I am able to screenshot and preserve images that were sent as view once. I believe this should be against the intended purpose of the view once feature.

Steps to reproduce

• Receive a view once image
• Open said image
• Take a screenshot

Actual result: The screenshot contains the image that was sent Expected result: The screenshot should just be a black screen

[mileskrell]

Duplicate of #12350

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.