Unable to download a ZIM file

[kelson42]

Wanted to download a ZIM file which (from the UI) seems available

But when I try to click on the "Download ZIM". this is what I get:

Either the ZIM file should be available, or we should request to regenerate the ZIM. In worse case we should display a user-friendly error

[audiodude]

We hide the "download ZIM" link after 14 days, which is calculated by the WP1 server. This is based on the assumption that the fie lives in the Zimfarm S3 storage for that long. If the ZIM file is deleted by the Zimfarm for any reason before that, you will likely see this message.

We could alternately do a "background poll" of the ZIM file, maybe with a HEAD request to see if it is 404, and use that to decide whether to show the download link?

Alternately, this could have been caused by an error in Zimfarm not being reported as such to WP1 (and the file never being created).