Get xkcd Cartoons at 2x Resolution

I recently learned a neat trick from Marcus Buffett : xkcd has an undocumented way to get images of the cartoons at double their normal resolution. The _2x trick For example, xkcd #2582 &ldquo;Data Trap&rdquo; lists this URL as the direct link: https://imgs.xkcd.com/comics/data_trap.png That leads to this 275x275px image, quite small by today&rsquo;s standards: But there&rsquo;s a trick! Add a _2x…