Improve FDC3 for Web demo default settings for testing use

Author: kriswest

toolbox/fdc3-for-web/demo/src/client/da/dummy-desktop-agent.ts

@@ -141,7 +141,7 @@ window.addEventListener('load', () => {
         },
       },
     ];
-    const fdc3Server = new DefaultFDC3Server(sc, directory, channelDetails, true, 20000, 10017);
+    const fdc3Server = new DefaultFDC3Server(sc, directory, channelDetails, true, 20000, 15000);
 
     socket.on(FDC3_APP_EVENT, (msg, from) => {
       fdc3Server.receive(msg, from);

toolbox/fdc3-for-web/demo/static/da/index.html

@@ -42,8 +42,8 @@
     <p>Demo Desktop Agent</p>
 
     <select name="opener" id="opener">
-        <option value="Tab" default>New Tab</option>
-        <option value="Frame">Frame</option>
+        <option value="Frame" default>Frame</option>
+        <option value="Tab">New Tab</option>
     </select>
 
     <select name="approach" id="approach">

toolbox/fdc3-for-web/fdc3-web-impl/src/BasicFDC3Server.ts

@@ -68,7 +68,7 @@ export class DefaultFDC3Server extends BasicFDC3Server {
     userChannels: ChannelState[],
     heartbeats: boolean,
     intentTimeoutMs: number = 20000,
-    openHandlerTimeoutMs: number = 10000
+    openHandlerTimeoutMs: number = 15000
   ) {
     const handlers: MessageHandler[] = [
       new BroadcastHandler(userChannels),
@@ -77,7 +77,7 @@ export class DefaultFDC3Server extends BasicFDC3Server {
     ];
 
     if (heartbeats) {
-      handlers.push(new HeartbeatHandler(openHandlerTimeoutMs / 10, openHandlerTimeoutMs / 2, openHandlerTimeoutMs));
+      handlers.push(new HeartbeatHandler(openHandlerTimeoutMs / 3, openHandlerTimeoutMs, openHandlerTimeoutMs * 3));
     }
 
     super(handlers, sc);

toolbox/fdc3-for-web/fdc3-web-impl/src/handlers/HeartbeatHandler.ts

@@ -38,7 +38,11 @@ export class HeartbeatHandler implements MessageHandler {
   private readonly lastHeartbeats: Map<InstanceID, number> = new Map();
   private readonly timerFunction: NodeJS.Timeout;
 
-  constructor(pingInterval: number = 1000, disconnectedAfter: number = 5000, deadAfter: number = 20000) {
+  constructor(pingInterval: number = 5000, disconnectedAfter: number = 30000, deadAfter: number = 60000) {
+    console.log(
+      `Setting up Heartbeat handler: pingInterval: ${pingInterval} ms, disconnectedAfter: ${disconnectedAfter} ms, deadAfter: ${deadAfter} ms`
+    );
+
     this.timerFunction = setInterval(() => {
       this.contexts.forEach(async sc => {
         const apps = await sc.getAllApps();