BerndGabriel/HtmlViewer — pull request #17 by JPeterMugaas (2012-01-18 00:26:39+00:00)
Title: {IFDEF Quirk} should be replaced with a "Quirks Mode" like Internet Explorer

I have verified this.
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The settings of the Quirks mode property are as follows:

detect - automatically detect if a quirks mode by scanning the document for the appropriate !DOCTYPE declarations.

standards - for documents known to be designed around the standard specifications
such as XHTML documents or something with a
"X-UA-Compatible	IE=Edge,chrome=1" HTTP header.

quirks - for documents known to work only with a quirks mode.