diff --git a/aos/network/web_proxy_main.cc b/aos/network/web_proxy_main.cc
index 0e49760..c674520 100644
--- a/aos/network/web_proxy_main.cc
+++ b/aos/network/web_proxy_main.cc
@@ -24,7 +24,6 @@
 
   LOG(INFO) << "My node is " << aos::FlatbufferToJson(self);
 
-  // TODO(alex): skip fetchers on the wrong node.
   for (uint i = 0; i < config.message().channels()->size(); ++i) {
     auto channel = config.message().channels()->Get(i);
     if (aos::configuration::ChannelIsReadableOnNode(channel, self)) {
diff --git a/aos/network/www/config_handler.ts b/aos/network/www/config_handler.ts
index 3d20f0d..6615f39 100644
--- a/aos/network/www/config_handler.ts
+++ b/aos/network/www/config_handler.ts
@@ -3,13 +3,14 @@
 import {Connection} from './proxy';
 
 export class ConfigHandler {
-  private readonly root_div = document.getElementById('config');
+  private readonly root_div = document.createElement('div');
   private readonly tree_div;
   private config: Configuration|null = null
 
   constructor(private readonly connection: Connection) {
     this.connection.addConfigHandler((config) => this.handleConfig(config));
 
+    document.body.appendChild(this.root_div);
     const show_button = document.createElement('button');
     show_button.addEventListener('click', () => this.toggleConfig());
     const show_text = document.createTextNode('Show/Hide Config');
diff --git a/aos/network/www/proxy.ts b/aos/network/www/proxy.ts
index a675340..7bcf575 100644
--- a/aos/network/www/proxy.ts
+++ b/aos/network/www/proxy.ts
@@ -66,6 +66,11 @@
     this.configHandlers.add(handler);
   }
 
+  /**
+   * Add a handler for a specific message type. Until we need to handle
+   * different channel names with the same type differently, this is good
+   * enough.
+   */
   addHandler(id: string, handler: (data: Uint8Array) => void): void {
     this.handlerFuncs.set(id, handler);
   }
@@ -183,7 +188,8 @@
   }
 
   /**
-   * Subscribes to messages.
+   * Subscribes to messages. Only the most recent connect message is in use. Any
+   * channels not specified in the message are implicitely unsubscribed.
    * @param a Finished flatbuffer.Builder containing a Connect message to send.
    */
   sendConnectMessage(builder: any) {