Prevent selection being greyed out in iframe in Firefox without using contenteditable

Question

In Firefox 3 and later (and probably older versions), selecting content within an iframe always seems to use the grey selection background colour used for a document that doesn\

Answer 1

Hypothesis: It seems that for dynamically written iFrames, either a XUL Iframe is rendered or the Gecko engine doesn't honor the styles.

Short of submitting a bug, the only workaround I can see is to wrap our contents in a textarea and style it to make it 'invisible': http://jsfiddle.net/mrchief/YYXSY/19/