iFinity

As per the previous post : if you want to add something to the ignoreRegex field, it's best to add the default value in. If 'ignoreFileTypesRegex' is not included in the attributes, then it just adopts the default value. If you wish to add a value to the field, you need to include the default value as well as your original value, like this:

(?<!linkclick\.aspx.+)(?:\.pdf$|\.gif$|\.png($|\?)|\.css$|\.js($|\?)|\.jpg$|\.html$|\.htm$|\.axd($|\?)|\.swf$|\.flv$|\.ico$|\.xml($|\?)|\.txt$|/aspx_code/)

Putting just |/aspx_code is going to match and ignore everything because you are saying 'anything or /aspx_code/'. That's why you get the error.

My mistake - the problem is actually that I didn't supply an XML-encoded version,

The correct value is (?&lt;!linkclick - the value you have entered changes the logic in the regex expression, which would manifest in linkclick urls that didn't work correctly.