squizlabs/HTML_CodeSniffer — pull request #5 by lwright-sq (2012-05-17 01:51:12+00:00)
Title: Add new sniff to SC 2.4.1, testing document fragment links to IDs that do not exist

Skip links that point to non-existent IDs can break the navigation experience for certain groups of users, particularly those that must use the keyboard but do not use a screen reader.