404 error for https://downloads.haskell.org/~ghc/latest/docs/html/

[noughtmare]

The address https://downloads.haskell.org/~ghc/latest/docs/html/ used to give a html page for the GHC manual, but now it gives a 404 error.

The parent https://downloads.haskell.org/~ghc/latest/docs/ does work and seems to indicate that the 'html' folder exists, but clicking that links gives the 404 error.

[bgamari]

Sigh, it looks like this is a result of the switch to Hadrian, which has slightly changed the directory structure for documentation. I believe the fact that the parent suggests that html exists is merely a result of the CDN.

[tomjaguarpaw]

The parent https://downloads.haskell.org/~ghc/latest/docs/ does work and seems to indicate that the 'html' folder exists, but clicking that links gives the 404 error.

I don't see a link with html in it, but I do see a broken link from "GHC API" to https://downloads.haskell.org/~ghc/latest/docs/libraries/ghc/index.html

[noughtmare]

For the record, I'm seeing this:

I'm also worried that this change will be permanent, because I used this link in quite quite a few posts online so all that would break. I notice that the https://haskell.org/documentation link to the GHC User's Guide at the bottom is also broken now.

Would it be a good idea to add a stable route to the html version of the GHC User's Guide on haskell.org?

[tomjaguarpaw]

How bizarre. I'm seeing the following on

• https://downloads.haskell.org/~ghc/latest/docs/, and
• https://downloads.haskell.org/ghc/latest/docs/

Would it be a good idea to add a stable route to the html version of the GHC User's Guide on haskell.org?

Well, https://www.haskell.org/ghc/ really ought to be used for that purpose.

[noughtmare]

How bizarre. I'm seeing the following on

I'm guessing it is indeed caching. I'm seeing what you are seeing on the link without the ~, but the other link still shows the old contents. I do find it a bit strange that the cache is still the same after 11 hours, but I don't know what to expect on that front.

[bgamari]

How bizarre. I'm seeing the following on

I'm guessing it is indeed caching. I'm seeing what you are seeing on the link without the ~, but the other link still shows the old contents. I do find it a bit strange that the cache is still the same after 11 hours, but I don't know what to expect on that front.

Yes, the CDN is the cause of untold mysteries.

I'm also worried that this change will be permanent, because I used this link in quite quite a few posts online so all that would break. I notice that the https://haskell.org/documentation link to the GHC User's Guide at the bottom is also broken now.

Indeed, I too am worried that users may have come to rely on this URL. On the other hand, latest is by definition subject to change. We could install a hack to forward /ghc/latest/docs/html to /ghc/latest/docs/users-guide, but I am worried that this may only break again (perhaps in a harder-to-fix) way in the future.