This is an experiment looking to see if we can do any better at making
URLs that work even when the destination is inaccessible. In particular,
some misuse of the data URL scheme provides some interesting
possibilities for fmaking URLs that have more intelligence than just a
resource locator. A longer description is at the link below, but for
reference, most browsers can access this page as:
data:text/html;c=https://willscott.github.io/peer-fallback/demo/firstvisit.html?#;base64,PHNjcmlwdD5kb2N1bWVudC53cml0ZSgnPG1ldGEgaHR0cC1lcXVpdj1yZWZyZXNoIGNvbnRlbnQ9MTsnK2xvY2F0aW9uLmhyZWYuc3Vic3RyKDE3KSsnPjxzJysnY3JpcHQgc3JjPWh0dHBzOi8vd2lsbHNjb3R0LmdpdGh1Yi5pby9wZWVyLWZhbGxiYWNrL3BlZXItZmFsbGJhY2suanM+Jyk7PC9zY3JpcHQ+