Improve caching policy

* Cache css with version in url. This makes most js and css requests to
  be cached by the browser

* Force caching previews, the etag is in the url so that if the propfind
  gives a new etag, we will refresh it otherwise it's no use to try to
  fetch the new etag and do tons of DB queries

Tested with firefox and 'debug' => false (important so that the js/css
urls are generated with ?v= parameter)

Signed-off-by: Carl Schwan <carl@carlschwan.eu>

1 files changed, 1 insertions, 1 deletions

diff --git a/apps/theming/lib/Controller/IconController.php b/apps/theming/lib/Controller/IconController.php
index 45d3ee14e47..173b5210394 100644
--- a/apps/theming/lib/Controller/IconController.php
+++ b/apps/theming/lib/Controller/IconController.php
@@ -96,7 +96,7 @@ class IconController extends Controller {
 			$iconFile = $this->imageManager->setCachedImage('icon-' . $app . '-' . str_replace('/', '_',$image), $icon);
 		}
 		$response = new FileDisplayResponse($iconFile, Http::STATUS_OK, ['Content-Type' => 'image/svg+xml']);
-		$response->cacheFor(86400);
+		$response->cacheFor(86400, false, true);
 		return $response;
 	}