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Knowledge Check
Iframe sandbox Mastery Check
Pass mark 70% · 5 minutes
QUESTION 1 / 1
Which choice best verifies the purpose of “Iframe sandbox” in this lesson?
Rename variables until the output changes.
Inspect the resulting document semantics and browser/accessibility behavior, not only how it looks.
Assume valid syntax guarantees correct behavior.
Replace the construct with unrelated placeholder code.
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