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-rw-r--r--mod/groups/graphics/icon.php1
1 files changed, 1 insertions, 0 deletions
diff --git a/mod/groups/graphics/icon.php b/mod/groups/graphics/icon.php
index 99a79dab0..8528ea8a9 100644
--- a/mod/groups/graphics/icon.php
+++ b/mod/groups/graphics/icon.php
@@ -37,6 +37,7 @@
}
header("Content-type: image/jpeg");
+ header('Expires: ' . date('r',time() + 864000));
header("Pragma: public");
header("Cache-Control: public");
header("Content-Length: " . strlen($contents));