mod_perl Pocket Reference by Andrew Ford Unconfirmed error reports are from readers. They have not yet been approved or disproved by the author or editor and represent solely the opinion of the reader. If you have technical questions or error reports, you can send them to booktech@oreilly.com. (Please specify the printing date of your copy.) This page was last updated May 24, 2001. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification UNCONFIRMED errors and comments from readers: {28} under "Content-Language": Delete "two-letter". RFC 3066 allows for language tags of any length. (Example: i-klingon, az-cyrillic, wen, sgn-US, zun).