getComputedStyle across windows

This is a paragraph outside the iframe.

This is a paragraph outside the iframe.

This paragraph is the color that outerWindow.getComputedStyle says the paragraph inside the iframe is.
This paragraph is the color that iframeWindow.getComputedStyle says the paragraph outside the iframe is.
This paragraph is the color that outerWindow.getComputedStyle says the display:none paragraph inside the iframe is.
This paragraph is the color that iframeWindow.getComputedStyle says the display:none paragraph outside the iframe is.
This paragraph is the color that outerWindow.getComputedStyle says the detached paragraph inside the iframe is.
This paragraph is the color that iframeWindow.getComputedStyle says the detached paragraph outside the iframe is.