[squid-users] offline mode not working for me

[Amos Jeffries]

On 20/01/24 02:05, Robin Carlisle wrote:
> 
> I do have 1 followup question which I think is unrelated, let me know if 
> etiquette demands I create a new post for this. When I test using 
> chromium browser, chromium sends OPTION requests- which I think is 
> something to do with CORS.   These always cause cache MISS from squid,.. 
> I think because the return code is 204...?
> 

No, the reason is HTTP specification (RFC 9110 section 9.3.7):
    "Responses to the OPTIONS method are not cacheable."

If these actually are CORS (might be several other things also), then 
there is important differences in the response headers per-visitor. 
These cannot be cached, and Squid does not know how to correctly 
generate for those headers. So having Squid auto-respond is not a good idea.


Cheers
Amos