Unable to understand Blogger's error message

Question

I get the following window after clicking this link in Firefox.

I press enter in the address bar again the page loads correctly in Firefox. I do the same in Safari the page does not load.

I have Google's toolbar in my Firefox. This suggests me that Google goes to look at its cache the article if it is not found immediately.

It seems that SO-family uses the same Google's cache, since the link in the comment shows the page correctly.

Why does I get the error message after clicking the first link?

Answer 1

The page you were sent to was:

textile-vs-markdown-vs-multimarkdown-vs_10.html

But the URL was encoded like this:

textile-vs-markdown-vs-multimarkdown-vs%5F10.html

It's possible that either the server or browser was for some reason unable to decode the %5F seen in the link as an underscore and thus sending you to a page that didn't quite exist without properly decoding the link for the server to find. In this case, turning that %5F into _

After being shown that error, you'll note that the URL was shown in its correctly decoded state (the one with the underscore and not %5F).

When you hit enter in the location bar, the version of the URL with the underscore was asked for. Because it was already decoded to swap out for the underscore, was able to pull up the correct page as requested.

Answer 2

Works fine for me in FF3.5, Chrome, and even Internet Explorer.