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The html manual download is corrupt #104654

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opened 2023-12-09 02:33:43 +01:00 by steve · 5 comments
steve commented 2023-12-09 02:33:43 +01:00
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Page Information
File: ``
Blender Version: 4.01`
Documentation Language: english
Permanent Link

Short description of error
The .zip file containing the html version of the manual is corrupt and will not unpack in winrar or windows10

**Page Information** File: `` Blender Version: 4.01` Documentation Language: english [Permanent Link]() **Short description of error** The .zip file containing the html version of the manual is corrupt and will not unpack in winrar or windows10
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dupoxy commented 2023-12-09 18:47:10 +01:00
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There is indeed something wrong. Using 7z to open it, there's a 'Not Found (404)' 404.html page at the root.

There is indeed something wrong. Using 7z to open it, there's a 'Not Found (404)' 404.html page at the root.
Danny McGrath was assigned by Aaron Carlisle 2023-12-13 02:14:01 +01:00
Arnd Marijnissen was assigned by Aaron Carlisle 2023-12-13 02:14:02 +01:00
Aaron Carlisle commented 2023-12-13 02:23:23 +01:00
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Seems like Cloudflare is blocking the download from exceeding a size limit.

I get this error when extracting: Unexpected end of archive.

Seems like Cloudflare is blocking the download from exceeding a size limit. I get this error when extracting: `Unexpected end of archive`.
Danny McGrath commented 2023-12-13 16:47:31 +01:00
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I had a chat with a Cloudflare tech, but they only suggested that it could be due to a missing Content-Length header. Unfortunately, we are sending the header from the backend server (origin). It's unclear if there is something else causing them to not send the header, but attempts to block caching of those particular URL proved futile.

I had a chat with a Cloudflare tech, but they only suggested that it could be due to a missing Content-Length header. Unfortunately, we are sending the header from the backend server (origin). It's unclear if there is something else causing them to not send the header, but attempts to block caching of those particular URL proved futile.
Danny McGrath commented 2023-12-14 20:28:16 +01:00
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I dug a little deeper and was noticing that the webserver was also missing a merged upstream config option to load mod_http2 and enable the protocol as well.

While the origin server now allows HTTP/2 and ALPN supports the negotiated upgrade, it still seems like the upstream isn't sending the Content-length headers, which could be related to a problem they have pointed us towards, still:

https://developers.cloudflare.com/cache/troubleshooting/chunked-encoding-and-dynamic-content/

I will continue to kick and test things, but the act of having to tweak rules, wait (unknown times), purge caches, re-test etc, takes some time.

I dug a little deeper and was noticing that the webserver was also missing a merged upstream config option to load mod_http2 and enable the protocol as well. While the origin server now allows HTTP/2 and ALPN supports the negotiated upgrade, it still seems like the upstream isn't sending the Content-length headers, which could be related to a problem they have pointed us towards, still: https://developers.cloudflare.com/cache/troubleshooting/chunked-encoding-and-dynamic-content/ I will continue to kick and test things, but the act of having to tweak rules, wait (unknown times), purge caches, re-test etc, takes some time.
Danny McGrath commented 2023-12-15 18:05:06 +01:00
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It would appear that a Cloudflare feature called "workers", which hijacks requests to inject code into a request as part of our recent fund campaign was the cause of the content being cut short.

I have disabled this code for now while the team looks into an alternate solution, which should at least allow the url to download properly for now.

In addition, I have adjusted the cache values for docs.blender.org to be a little more friendly in the amount of time things are cached, resulting is less traffic to the origin server (us!). Hopefully the changes help with the downloads!

It would appear that a Cloudflare feature called "workers", which hijacks requests to inject code into a request as part of our recent fund campaign was the cause of the content being cut short. I have disabled this code for now while the team looks into an alternate solution, which should at least allow the url to download properly for now. In addition, I have adjusted the cache values for docs.blender.org to be a little more friendly in the amount of time things are cached, resulting is less traffic to the origin server (us!). Hopefully the changes help with the downloads!
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