add URLs after link text in print version?

[tobyhodges]

In carpentries/docs.carpentries.org#201, Owen asked about including URLs for links in the printed version of a lesson. It looks like we could enable this with some relatively small changes to the CSS in varnish:

@media print {
    a[href]:after {
        content: ' (' attr(href) ')';
    }
}

What are your thoughts about doing this? Any potential hazards that I am missing?

[Bisaloo]

The only potential issue I can anticipate is that very long links may look very bad:

• how does line wrapping work in these cases?
• should the CSS code you included only apply to relatively short links?
• a first good step might be to scrape links from all official lessons to get an idea of how commonly the issue I mention might be encountered