It doesn't support non-escaped URLs

[fregante]

This is one of the URLs listed on MDN: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs

data:text/html,<script>alert('hi');</script>

And it just fails due to < and the rest

[killmenot]

@fregante The regex of valid-data-url seems doesn't handle it correctly. I will fix it next week. Thanks.

[killmenot]

if anyone could do a PR for that I will be happy to merge