2.2.33 [HTML] Section 16.5, Inline frames: the IFRAME element
V0112:
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The information to be inserted inline is designated by the src attribute of [the IFRAME] element. The contents of the IFRAME element, on the other hand, should only be displayed by user agents that do not support frames or are configured not to display frames.
All Document Modes (All Versions)
The content of the IFRAME element is ignored when a site is a member of the Restricted sites zone.
V0113:
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Inline frames may not be resized (and thus, they do not take the noresize attribute).
All Document Modes (All Versions)
The noresize attribute for the IFRAME element is ignored.