Hi all,

I tested the new proxy_cache_background_update function to serve stale
content while fetching an update in the background.

I ran into the following issue:
- PHP application running on www.example.com
- Root document lives on /index.php

As soon as the cache has expired:
- A client requests http://www.example.com/
- Nginx returns the stale response
- In the background Nginx will fetch
http://www.mybackend.com/index.html (index.html
instead of index.php or just /)
- The backend server returns a 404 (which is normal)
- The root document remains in stale state as Nginx is unable to fetch it
properly

As a workaround I included "rewrite ^/index.html$ / break;" to rewrite the
/index.html call to a simple / for the backend server.
This works, but is not ideal.

Is there a better way to tell Nginx to just fetch "/"?

Thanks,

Jean-Paul Hemelaar
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