Re: [squid-users] cache-control: no-transform - does it affect caching of pages & content?

On 18/05/2013 12:07 a.m., Adrian Miller wrote:
> Recently i added cache-control: no-transform to Firefox's ModifyHeader
> addon, expressly to stop vodafone adding its 1.2.3.4/bms.js (to
> reduce image quality/bandwidth) to EVERY page it serves me.
>
> Other suggestions on the vodafone js insertion was to use
> cache-control: no-cache and/or pragma: no-cache

These have nothing to do with insertions. They will simply cause a MISS
or revalidate on any cache along the way.

>
> I chose to try no-transform in just cache-control as i thought it was
> potentially less drama
>
> After doing so im looking at my ratios and think that they may be
> lower than before i added this directive via the addon.
>
> Any gurus out there have an opinion on whether this affects caching or
> not, to my understanding it shouldn't affect things, but just wanting
> some clarification.
>
> Thanks in advance,
>
> Adrian Miller

That one does not affect caching.

If bms was altering the content in ways that broke caching your fix
could be causing the performance optimizations built into HTTP to start
working. Thats just a guess though.

Amos
Received on Fri May 17 2013 - 12:46:50 MDT