This file demonstrates a <frame> that has an invalid "title" (null).
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html lang="en"> <head> <title>aert1.0/12.1.1</title> </head> <frameset> <frame title=""></frame> </frameset> <body> </body> </html>