"#" should be encoded in the URL. Here's my version: data:text/html,<html%20contenteditable><style>body{-moz-box-sizing:border-box;box-sizing:border-box;wo

"#" should be encoded in the URL. Here's my version: data:text/html,<html%20contenteditable><style>body{-moz-box-sizing:border-box;box-sizing:border-box;word-break:break-all;overflow-x:hidden;color:%23333;width:960px;margin:0%20auto;display:block;height:100%;font-size:20pt;font-family:monospace;padding:20pt;}</style></html>