challenge-novalid.html (206B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset=utf-8> 5 <title>keygen with "challenge" attribute</title> 6 </head> 7 <body> 8 <keygen challenge="123456"> 9 <keygen challenge=""> <!-- empty challenge --> 10 </body> 11 </html>