sandbox blocks JavaScript windows Browser Compatibility Check

Description

iframe elements using the sandbox attribute will not display windows produced by alert(), confirm(), prompt() and print() functions.

Help

Add allow-modals to the sandbox attribute if you need these windows to appear.

Applicable standards

• Chrome
• Edge
• Opera

Change history

• 5.36 Jan 2020 Now fires for Edge and Opera.
• 5.20 Jan 2016 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: BugHtmlIframeSandboxModals