# regular expression error in 3.0.x not present in 3.0.6

Aaron Hurt ahurt at ena.com
Fri Mar 6 17:08:04 CET 2015

```> On Mar 6, 2015, at 3:11 AM, Phil Mayers <p.mayers at imperial.ac.uk> wrote:
>
>> When old style domain names come into FR they seem to always contain
> That's just a printout escaping thing in debugging. It's really one \ in the packet, and thus \\ is sufficient to match it in the regex with correct escapes set to true.

Good to know, thank you.

> --
> Sent from my mobile device, please excuse brevity and typos
> -