ASM: Data Guard (Credit Card Number) Exception Rules

Hi Folks

I'm having grief with Data Guard Credit Card processing. I have a bunch of web pages that use SVG graphics, and Data Guard is incorrectly detecting credit card numbers and masking some of the data used to render the graphic. If the ASM policy is in transparent mode it masks some of the data (with asterisks, and this distorts the rendered graphic), and if the policy is in blocking mode it blocks the page outright. It's definitely the credit card feature because if I disable this in Data Guard everything works normally.

The data in question is contained between tags that explicitly starts with "

Thanks