Getting caching right is still very hard / 2020-12-24

2020-12-24 Getting caching right is still very hard 10 months ago
After switching my websites to https I found out caching works differently on https (for good reasons) and files included by lots of pages got reloaded a lot.

So I added some caching hints. I especially did not want the stylesheet to be reloaded constantly. So I added an ExpiresByType directive to cache stylesheets for a week.

But on the change of camp-wireless to a new stylesheet and programming language I got bitten by this: some browsers had the old css code cached and saw no reason to check for updates. The site looked strange (but wasn't really broken).

I recently made some changes to parts of my homepage too, also going to the CSS grid model, just like the changes in Camp Wireless to the CSS grid model. And I had the same problems with the CSS in the production version. It took a bit of searching to find the source of the Expires statement, it was in the .htaccess file.

Now fixed to a much shorter cache time, it is quite possible to have versions of the pagecode and CSS differ in the browser.

Tags: , ,

IPv6 check

Running test...
, reachable as koos+website@idefix.net. PGP encrypted e-mail preferred. PGP key 5BA9 368B E6F3 34E4 local copy PGP key 5BA9 368B E6F3 34E4 via keyservers

RSS
Meningen zijn die van mezelf, wat ik schrijf is beschermd door auteursrecht. Sommige publicaties bevatten een expliciete vermelding dat ze ongevraagd gedeeld mogen worden.
My opinions are my own, what I write is protected by copyrights. Some publications contain an explicit license statement which allows sharing without asking permission.
Other webprojects: Camp Wireless, wireless Internet access at campsites, The Virtual Bookcase, book reviews
This page generated by $Id: newsitem.cgi,v 1.54 2020/12/31 15:36:31 koos Exp $ in 0.006350 seconds.