Incorrect links are generated for modules in the index of "Haskell Hiearchical Libraries"
This was originally spotted and posted to the ghc-devs mailing list by Joachmin Breitner, but apparently since nobody has submitted a ticket for this relatively serious issue, here it is. I am quoting Joachim:
while the index at http://haskell.inf.elte.hu/docs/7.11.20150222.noWin32/html/libraries/index.html exists, navigating to http://haskell.inf.elte.hu/docs/7.11.20150222.noWin32/html/libraries/Data-Char.html yields a 404 error. Same for http://haskell.inf.elte.hu/docs/latest/html/libraries/Data-Char.html
And I have replied the following to his initial email (I am involved in this because I am doing daily snapshots of the documentation through my FreeBSD GHC builders):
Yes, I can confirm this bug. For what it is worth, the files are all there, the link appears to be broken: it is missing the subdirectory with the name of the package. That is, the proper link should be something like that: http://haskell.inf.elte.hu/docs/7.9.20141222.noWin32/html/libraries/base-184.108.40.206/Data-Char.html (Note the missing "base-220.127.116.11".) I have checked this with GHC 7.8.3, and everything is right there, while this problem seems to appear with GHC 7.10 RC2 and GHC-HEAD (starting from somewhere between mid-September and November -- that is what a quick bisecting tells me).