CONSOLE WARNING: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.
Tests that the <iframe sandbox> attribute influences whether notification permissions will be inherit by an iframe.
Normal iframe. Should inherit permissions.
Sandboxed iframe with allow-same-origin. Should inherit permissions.
Sandboxed iframe without allow-same-origin. Should not inherit permissions.
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Frame: '<!--framePath //<!--frame0-->-->'
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granted
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Frame: '<!--framePath //<!--frame1-->-->'
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granted
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Frame: '<!--framePath //<!--frame2-->-->'
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denied