diff --git a/functions.js b/functions.js
index fcb086b1..f922183c 100644
--- a/functions.js
+++ b/functions.js
@@ -2,6 +2,14 @@ var hotkeys_enabled = true;
 var debug_mode_enabled = false;
 var xmlhttp_rpc = Ajax.getTransport();
 
+/* add method to remove element from array */
+
+Array.prototype.remove = function(s) {
+	for (var i=0; i < this.length; i++) {
+		if (s == this[i]) this.splice(i, 1);
+	}
+}
+
 function browser_has_opacity() {
 	return navigator.userAgent.match("Gecko") != null || 
 		navigator.userAgent.match("Opera") != null;
diff --git a/viewfeed.js b/viewfeed.js
index bc296c55..622ea637 100644
--- a/viewfeed.js
+++ b/viewfeed.js
@@ -633,6 +633,9 @@ function editArticleTags(id, feed_id, cdm_enabled) {
 	_tag_active_post_id = id;
 	_tag_active_feed_id = feed_id;
 	_tag_active_cdm = cdm_enabled;
+
+	cache_invalidate(id);
+
 	try {
 		_tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
 	} catch (e) { }
@@ -829,3 +832,16 @@ function cache_expire() {
 		article_cache.shift();
 	}
 }
+
+function cache_invalidate(id) {
+	var i = 0
+	
+	while (i < article_cache.length) {
+		if (article_cache[i]["id"] == id) {
+			article_cache.remove(i);
+			return true;
+		}
+		i++;
+	}
+	return false;
+}