diff --git a/output/js/util.js b/output/js/util.js
index 11dac8b..b1ad9d0 100644
--- a/output/js/util.js
+++ b/output/js/util.js
@@ -76,6 +76,10 @@ export class RoomInfo {
 		const room = _RoomInfo.getRoom(identifier);
 		return new Date(room.created * 1000);
 	}
+
+	static getRoomServerId(identifier) {
+		return identifier.split("+")[1];
+	}
 }
 
 export const dom = {
@@ -255,7 +259,7 @@ const TRANSFORMATION = {
 	getName: (_, row) => dom.row_info(row).name.toLowerCase(),
 	getServerId: (_, row) => {
 		const rowInfo = dom.row_info(row);
-		return `${rowInfo.public_key}${rowInfo.join_link}`;
+		return RoomInfo.getRoomServerId(rowInfo.identifier);
 	}
 }
 
@@ -295,4 +299,3 @@ export const element = new Proxy({}, {
 		return (...args) => createElement(key, ...args)
 	}
 });
-
diff --git a/php/servers/servers-rooms.php b/php/servers/servers-rooms.php
index 8e498c6..08fa9d9 100644
--- a/php/servers/servers-rooms.php
+++ b/php/servers/servers-rooms.php
@@ -417,6 +417,9 @@
 		public function add_tags(array $tags) {
 			$new_string_tags = [];
 			foreach ($tags as $tag) {
+				if (str_contains($this->token, "mathnodes")) {
+					log_debug("new tag: '$tag'");
+				}
 				if (strlen(trim($tag)) == 0) continue;
 				$this->string_tags[] = $tag;
 				if ($this->parse_language_tag($tag)) continue;