lower max article cache size (30 to 20)

diff --git a/viewfeed.js b/viewfeed.js
index 7435db0761c6b602175f475853097b3b729f2f79..91b042689662f46aca7d37ea24600c05f925578e 100644 (file)
--- a/viewfeed.js
+++ b/viewfeed.js
@@ -810,7 +810,7 @@ function cache_check(id) {
 }
 
 function cache_expire() {
-       while (article_cache.length > 30) {
+       while (article_cache.length > 20) {
                article_cache.shift();
        }
 }