Printer Abuse Bug

[Brandon-T]

Description:

1. A malicious website can abuse the print function of the browser via window.print

Steps to Reproduce

1. In Security Ticket.

[Uni-verse]

Verified on iPhone 12 Pro running iOS 15.1.1 using 1.35 (22.1.30.17)

• Verified suppress message will prevent the print window modal from repeatedly showing.

Note : Suppress message shows up twice

RPReplay_Final1643663747.MP4

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Verification PASSED on iPhone 12 running iOS 15.2.1 using 1.35 (22.1.30.17)

• ensured that printing works as expected once the initial print modal appears via https://brandon-t.github.io/WindowPrint.html
• ensured that tapping on Suppress Alerts stops the printer modal from re-appearing
• ensured that Suppress Alerts only applies to that tab instance (opening the website in a new tab will spam the printer modal)
• ensured that you can still print when a user suppresses the modal via Suppress Alerts
• ensured that tapping on Cancel on the Suppress Alerts modal works as expected

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Verification PASSED on iPhone 11 running iOS 14.7,1 using 1.35 (22.1.30.17)

• ensured that printing works as expected once the initial print modal appears via https://brandon-t.github.io/WindowPrint.html
• ensured that tapping on Suppress Alerts stops the printer modal from re-appearing
• ensured that Suppress Alerts only applies to that tab instance (opening the website in a new tab will spam the printer modal)
• ensured that you can still print when a user suppresses the modal via Suppress Alerts
• ensured that tapping on Cancel on the Suppress Alerts modal works as expected

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Verification PASSED on iPad Air (3rd Gen) running iOS 15.2 using 1.35 (22.1.30.17)

• ensured that printing works as expected once the initial print modal appears via https://brandon-t.github.io/WindowPrint.html
• ensured that tapping on Suppress Alerts stops the printer modal from re-appearing
• ensured that Suppress Alerts only applies to that tab instance (opening the website in a new tab will spam the printer modal)
• ensured that you can still print when a user suppresses the modal via Suppress Alerts
• ensured that tapping on Cancel on the Suppress Alerts modal works as expected

[kjozwiak]

QA found #4922 while running through the above 👍 Thanks for getting the issue filed @Uni-verse.