Caching and Firefox 3.5 Preview

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Drool, Britannia? Is the UK Failing the Cloud?

By Roger Strukhoff

Richard Davies wrote: The UK has a good crop of technology pioneers in cloud computing - for example ElasticHosts, FlexiScale, Flexiant, OnApp - and also some strong government initiatives such as G-Cloud. We will have to see whether this kind of technical leadership converts into swift mass-market adoption or not.

Jan. 8, 2012 11:38 AM EST

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Caching and Firefox 3.5 Preview

By: Dawn Parzych

Jun. 10, 2009 08:36 AM

Recently I wrote about Firefox using the Expires header as opposed to the max-age Cache-Control header. It was pointed out that the bug tracking this is marked as closed. I was very excited by this news and when I saw the news yesterday that Firefox had released a preview of 3.5 I decided to check and see if this bug fix had made it into 3.5. Needless to say I was very disappointed to still see that the incorrect caching behavior exists - the Expires header overrides the Cache-Control header.

I did a little bit of digging around and see that this bug was first reported April 24, 2003 that's 6 years and still no fix in site. My question is why is it taking so long for this issue to be resolved? The targeted milestone for this to be fixed is mozilla 1.9.2a1. No where have I been able to find what Firefox version that correlates to. The Firefox 3.5 Preview is using 1.9.1b99. When oh when will this be fixed?

On the plus side I really like the changes in the Clear Recent History functionality. I am constantly having to clear my cache when testing sites to see how they perform with and without a populated cache. Of course this means wiping out my entire cache and the result is I get slower performing page downloads for the sites I frequently visit. The ability to specify a time range is a definite step in the right direction so I can only clear the content for the last hour and not items that have been in cache longer. I'm still looking for a way to clear only the memory cache.

Technorati Tags: Firefox 3.5,caching,expires,max-age

Categories: Acceleration

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About Dawn Parzych
Dawn Parzych is a product manager for F5 Networks, the global leader in Application Delivery Networking. For the past 2 years, she has been in London working as an acceleration architect with F5 customers based in Europe, the Middle East, and Africa. Dawn has helped companies in finance, retail, media, and other industries optimize performance levels and overcome Web application delivery challenges. In her ten years as a Web performance specialist, Dawn has covered everything from load testing to Web performance monitoring to application delivery.