Characters that can be inside the javascript protocol in html
<a href="java$[chr]script:test.com/" id="test"></a>if(document.getElementById("test").protocol=="javascript:"){log($[i])}<a href="java0x09script:test.com/" id="test"></a><a href="java
script:test.com/" id="test"></a><a href="java0x0Dscript:test.com/" id="test"></a>