The problem with this article is that it doesn't immediate demonstrate, in code, what the problem is. Here's an example of a nested hash: "XXX". Here's what no

The problem with this article is that it doesn't immediate demonstrate, in code, what the problem is. Here's an example of a nested hash: "XXX". Here's what normally happens in Rack: "XX". Here's what we want to happen: "XX". Here's a couple solutions. Ding, now everyone is clearly on the same page, instead of reading the article twice trying to figure out what's going on.