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WODisplayExceptionPages
true or false to enable or disable the generation of WOExceptionPages for direct action requests. Default is true in development mode and false in deployment mode.
From httpFrom https://developer.apple.com/library/archive/documentation/WebObjects/WOAppProperties/AppProperties/chapter_1_section_1.htmlArticles/ApplicationProperties.html#//apple_ref/doc/uid/TP40005337-SW1
If the page being returned throws during appendToResponse and the app is deployed, all that is displayed is a blank page with the words "Your request produced an error".
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