diff --git a/include/functions2.php b/include/functions2.php
index af92b1340..19012c8e2 100644
--- a/include/functions2.php
+++ b/include/functions2.php
@@ -92,6 +92,7 @@
 				"feed_catchup" => __("Mark as read"),
 				"feed_reverse" => __("Reverse headlines"),
 				"feed_debug_update" => __("Debug feed update"),
+				"feed_debug_viewfeed" => __("Debug viewfeed()"),
 				"catchup_all" => __("Mark all feeds as read"),
 				"cat_toggle_collapse" => __("Un/collapse current category"),
 				"toggle_combined_mode" => __("Toggle combined mode"),
@@ -162,6 +163,7 @@
 				"f q" => "feed_catchup",
 				"f x" => "feed_reverse",
 				"f *d" => "feed_debug_update",
+				"f *g" => "feed_debug_viewfeed",
 				"f *c" => "toggle_combined_mode",
 				"f c" => "toggle_cdm_expanded",
 				"*q" => "catchup_all",
diff --git a/js/feedlist.js b/js/feedlist.js
index ad9d8dcfa..7a5996a87 100644
--- a/js/feedlist.js
+++ b/js/feedlist.js
@@ -8,7 +8,7 @@ var _viewfeed_timeout = false;
 var counters_last_request = 0;
 
 function viewCategory(cat) {
-	viewfeed(cat, '', true);
+	viewfeed({feed: cat, is_cat: true});
 	return false;
 }
 
@@ -43,22 +43,28 @@ function loadMoreHeadlines() {
 
 		console.log("offset: " + offset);
 
-		viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
+		viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat(), offset: offset, infscroll_req: true});
 
 	} catch (e) {
 		exception_error("viewNextFeedPage", e);
 	}
 }
 
-
-function viewfeed(feed, method, is_cat, offset, background, infscroll_req, can_wait) {
+function viewfeed(params) {
 	try {
+		var feed = params.feed;
+		var is_cat = params.is_cat;
+		var offset = params.offset;
+		var background = params.background;
+		var infscroll_req = params.infscroll_req;
+		var can_wait = params.can_wait;
+		var viewfeed_debug = params.viewfeed_debug;
+
 		if (is_cat == undefined)
 			is_cat = false;
 		else
 			is_cat = !!is_cat;
 
-		if (method == undefined) method = '';
 		if (offset == undefined) offset = 0;
 		if (background == undefined) background = false;
 		if (infscroll_req == undefined) infscroll_req = false;
@@ -77,7 +83,7 @@ function viewfeed(feed, method, is_cat, offset, background, infscroll_req, can_w
 				_infscroll_disable = 0;
 			}
 
-			if (infscroll_req && !method) {
+			if (infscroll_req) {
 				var timestamp = get_timestamp();
 
 				if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
@@ -96,10 +102,6 @@ function viewfeed(feed, method, is_cat, offset, background, infscroll_req, can_w
 		var query = "?op=feeds&method=view&feed=" + param_escape(feed) + "&" +
 			toolbar_query;
 
-		if (method) {
-			query = query + "&m=" + param_escape(method);
-		}
-
 		if (offset > 0) {
 			if (current_first_id) {
 				query = query + "&fid=" + param_escape(current_first_id);
@@ -121,7 +123,7 @@ function viewfeed(feed, method, is_cat, offset, background, infscroll_req, can_w
 					query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
 				}
 			} else {
-				if (!method && !is_cat && feed == getActiveFeedId()) {
+				if (!is_cat && feed == getActiveFeedId()) {
 					query = query + "&m=ForceUpdate";
 				}
 			}
@@ -144,6 +146,10 @@ function viewfeed(feed, method, is_cat, offset, background, infscroll_req, can_w
 
 		setActiveFeedId(feed, is_cat);
 
+		if (viewfeed_debug) {
+			window.open("backend.php" + query + "&debug=1&csrf_token=" + getInitParam("csrf_token"));
+		}
+
 		timeout_ms = can_wait ? 250 : 0;
 		_viewfeed_timeout = setTimeout(function() {
 
@@ -171,9 +177,9 @@ function feedlist_init() {
 		setTimeout("hotkey_prefix_timeout()", 5*1000);
 
 		if (!getActiveFeedId()) {
-			viewfeed(-3);
+			viewfeed({feed: -3});
 		} else {
- 			viewfeed(getActiveFeedId(), '', activeFeedIsCat());
+ 			viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat()});
 		}
 
 		hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
@@ -467,7 +473,7 @@ function catchupFeed(feed, is_cat, mode) {
 						var nuf = getNextUnreadFeed(feed, is_cat);
 
 						if (nuf) {
-							viewfeed(nuf, '', is_cat);
+							viewfeed({feed: nuf, is_cat: is_cat});
 						}
 					} else {
 						if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
diff --git a/js/tt-rss.js b/js/tt-rss.js
index f2a65b539..2dbf8a3b5 100644
--- a/js/tt-rss.js
+++ b/js/tt-rss.js
@@ -79,7 +79,7 @@ function updateFeedList() {
 			var id = String(item.id);
 			var is_cat = id.match("^CAT:");
 			var feed = id.substr(id.indexOf(":")+1);
-			viewfeed(feed, '', is_cat);
+			viewfeed({feed: feed, is_cat: is_cat});
 			return false;
 		},
 		openOnClick: false,
@@ -146,11 +146,11 @@ function catchupAllFeeds() {
 	}
 }
 
-function viewCurrentFeed(method) {
+function viewCurrentFeed() {
 	console.log("viewCurrentFeed");
 
 	if (getActiveFeedId() != undefined) {
-		viewfeed(getActiveFeedId(), method, activeFeedIsCat());
+		viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat()});
 	}
 	return false; // block unneeded form submits
 }
@@ -273,13 +273,13 @@ function init() {
 				var rv = dijit.byId("feedTree").getNextFeed(
 						getActiveFeedId(), activeFeedIsCat());
 
-				if (rv) viewfeed(rv[0], '', rv[1], null, null, null, true);
+				if (rv) viewfeed({feed: rv[0], is_cat: rv[1], can_wait: true})
 		};
 		hotkey_actions["prev_feed"] = function() {
 				var rv = dijit.byId("feedTree").getPreviousFeed(
 						getActiveFeedId(), activeFeedIsCat());
 
-				if (rv) viewfeed(rv[0], '', rv[1], null, null, null, true);
+				if (rv) viewfeed({feed: rv[0], is_cat: rv[1], can_wait: true})
 		};
 		hotkey_actions["next_article"] = function() {
 				moveToPost('next');
@@ -411,7 +411,7 @@ function init() {
 		};
 		hotkey_actions["feed_refresh"] = function() {
 				if (getActiveFeedId() != undefined) {
-					viewfeed(getActiveFeedId(), '', activeFeedIsCat());
+					viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat()});
 					return;
 				}
 		};
@@ -429,6 +429,11 @@ function init() {
 				alert("You can't debug this kind of feed.");
 			}
 		};
+
+		hotkey_actions["feed_debug_viewfeed"] = function() {
+			viewfeed({feed: getActiveFeedId(), is_cat: activeFeedIsCat(), viewfeed_debug: true});
+		};
+
 		hotkey_actions["feed_edit"] = function() {
 				if (activeFeedIsCat())
 					alert(__("You can't edit this kind of feed."));
@@ -454,16 +459,16 @@ function init() {
 				}
 		};
 		hotkey_actions["goto_all"] = function() {
-				viewfeed(-4);
+				viewfeed({feed: -4});
 		};
 		hotkey_actions["goto_fresh"] = function() {
-				viewfeed(-3);
+				viewfeed({feed: -3});
 		};
 		hotkey_actions["goto_marked"] = function() {
-				viewfeed(-1);
+				viewfeed({feed: -1});
 		};
 		hotkey_actions["goto_published"] = function() {
-				viewfeed(-2);
+				viewfeed({feed: -2});
 		};
 		hotkey_actions["goto_tagcloud"] = function() {
 				displayDlg(__("Tag cloud"), "printTagCloud");
diff --git a/js/viewfeed.js b/js/viewfeed.js
index 85872556e..c079586a2 100644
--- a/js/viewfeed.js
+++ b/js/viewfeed.js
@@ -1352,7 +1352,7 @@ function openNextUnreadFeed() {
 	try {
 		var is_cat = activeFeedIsCat();
 		var nuf = getNextUnreadFeed(getActiveFeedId(), is_cat);
-		if (nuf) viewfeed(nuf, '', is_cat);
+		if (nuf) viewfeed({feed: nuf, is_cat: is_cat});
 	} catch (e) {
 		exception_error("openNextUnreadFeed", e);
 	}