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I recently set up a Drupal 7 installation on an AWS ec2 instance with Bitnami.

When I'm theming, or editing any kinds of files in the sites directory a regular browser refresh won't show the changes, I need to hit Flush all caches > Css and Javascript to view the changes.

I've disabled caching in Development > Performance, and I don't have Advanced Agregation installed or anything.

Is there something to the Bitnami installation, or ec2 that could be caching the theme files?

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  • Browser cache most likely. AdvAgg in development mode will overcome this limitation.
    – mikeytown2
    Commented Jan 8, 2015 at 20:13
  • Thanks for the suggestion. I use a similar setup on a non-bitnami ec2 instance for clients and don't have to flush caches like this, so I don't think it's my browser. This also happens across my laptop, desktop, firefox, & chrome. I'll give AdvAgg a shot though, it might be a decent workaround for whatever's causing it.
    – Matt
    Commented Jan 8, 2015 at 20:27
  • Update: figured it out, apparently Bitnami comes with PageSpeed pre-installed and enabled by default.
    – Matt
    Commented Jan 17, 2015 at 18:30

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Update for anyone who comes here in the future:

Bitnami comes with Google PageSpeed installed & enabled by default It's a pretty useful tool, but it's tricky to figure out what's caching your css when there's nothing apparent.

To check for it, take a look at the of your drupal site & look through the <meta> & <style> tags for compressed css files, they'll look like lkjsdhf.gkdfsgklkshr.pagespeed.kljhasdfgk.ljsdhflgk or somesuch.

To disable it, navigate to your installation's apache configuration folder, mine was /home/bitnami/stack/apache2/conf & edit pagespeed.conf

Look for the line ModPagespeed on (mine was line 20) and change on to off

After that, restart Apache. You can also log into AWS and reboot your instance.

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  • For some reason, I had to clear the Drupal cache with drush cr after restarting Apache, but this works. Thanks!
    – pmagunia
    Commented Sep 10, 2018 at 3:05

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