The Dead End of the Iberia Riddle

The infamous fourth riddle of the Seisen no Iberia bonus track website, while seemingly like the others, is different in one important way: it has no answer. Whatever is put in the answer field, the visitor is redirected to the same error page. It's not even done through JavaScript, although such a function is defined in the main.js file - instead, the button after the answer field is not even a button, but a direct link to the error page. There is absolutely no way to proceed from the riddle to any other page than the error one. There's not even any hidden server-side code that could be triggered - it's a static HTML page that does not make any kind of request to the server except through the link to the error page. No <form>, no Ajax. To sum it up: it's a complete dead end. 

So, what now? 

If the expected route doesn't work, the only choice is to look somewhere else. But where? The earlier riddle pages and their branching alternate pages and error pages have been combed through many times and there's no hints to be found there. We could try to piece together the URLs and try to find some code or cipher that way but at that point it feels like too much effort. All the other bonus tracks have been found the normal way, without even looking at code. Why would Revo purposefully make this one so extremely difficult to find? 

Maybe we're not even supposed to find it at this current time. The site's landing page, before redirecting to the first riddle, displays this text: "When the time has come, the poem will be spun…" (translated by Kaido). When the time has come, huh. I don't know if that time will ever come since Revo's not at King Records anymore and they probably don't see much point in updating old SH websites outside of special occurrences such as the Re:Master project, but if it was to ever come, the coming years would be my guess as we approach the release of Ema Full and after that Rinne. These are interesting times for SH, and... well, stranger things have happened. 

And it's also entirely possible that I'm wrong and next week we'll find the bonus track in the most obvious place that no-one ever bothered to look at. Wouldn't that be comedic? Well, "all's well that ends well", right?