I have a servlet, that will, in cas of an error, redirect to a custom errorpage.
the errormessage is URL encoded and appended to the custom error page URL: e.g. http://domain.my/myproject/customerror.seam?err=Some+error

what would be the easiest was to just display the URL parameter in the custom errorpage?

now I have created a staless session bean and I use the @RequestParameter annotation
in the page, I simply access this SLB:

#{errorHelper.err}

creating a SLB (including local interface) just to display a URL parameter seems quite a lot of work...

using javascript is not an option, since the app should also work when js is disabled.
could I maybe use a trick in the pages.xml file?

any better ideas?