[Bug] JS download 文本中#後面的字都不見了

var mytext = encodeURI( "111#1111" );
var a = document.body.appendChild(document.createElement("a"));
a.download = "My_output.html"; 
a.href = "data:text/html," + mytext; 
a.click();

var mytext = encodeURIComponent( "1111#1111" );
var a = document.body.appendChild(document.createElement("a"));
a.download = "My_output.html"; 
a.href = "data:text/html," + mytext; 
a.click();