We have just released SVR.JS 3.4.2! In new version, we fixed bugs with regex-based non-standard HTTP status code settings. These bug have appeared since release of SVR.JS 3.0.0. We encountered this bug, when we set redirect to YaBB (Perl and CGI-based forum software) forum page, when we developed new version of RedBrick CGI engine. It was redirect loop. Now with SVR.JS 3.4.2, this issue is gone!
You can download new version of SVR.JS here.