CONSOLE MESSAGE: Namespace prefix foo on bar is not defined

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          text run at (0,0) width 324: "This page contains the following errors:"
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          text run at (0,0) width 511: "error on line 1 at column 110: Namespace prefix foo on bar is not defined"
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          text run at (0,0) width 429: "Below is a rendering of the page up to the first error."
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          text run at (0,0) width 227: "You should see error text above this"
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          text run at (0,0) width 350: "ERROR? this, and nothing below it should be rendered"