popup now receives info about current tab as well as the list of frames with videos in that tab

js/lib/Comms.js

@@ -277,7 +277,7 @@ class CommsServer {
     }
 
     if (message.cmd === 'get-current-site') {
-      port.postMessage({cmd: 'set-current-site', site: await this.getCurrentTabHostname()});
+      port.postMessage({cmd: 'set-current-site', site: this.server.getVideoTab()});
     }
 
     if (message.cmd === 'get-config') {

js/uw-bg.js

@@ -14,6 +14,7 @@ class UWServer {
     this.setup();
 
     this.videoTabs = {};
+    this.currentTabId = 0;
   }
 
   async setup() {
@@ -60,13 +61,13 @@ class UWServer {
       console.log("[uw-bg::onTabSwitched] TAB CHANGED, GETTING INFO FROM MAIN TAB");
 
     try {
-      var tabId = activeInfo.tabId;   // just for readability
+      this.currentTabId = activeInfo.tabId;   // just for readability
 
       var tab;
       if (BrowserDetect.firefox) {
-        var tab = await browser.tabs.get(tabId);
+        var tab = await browser.tabs.get(this.currentTabId);
       } else if (BrowserDetect.chrome) {
-        var tab = await this._promisifyTabsGet(chrome, tabId);
+        var tab = await this._promisifyTabsGet(chrome, this.currentTabId);
       }
 
       this.currentSite = this.extractHostname(tab.url);
@@ -145,6 +146,21 @@ class UWServer {
       console.log("[UWServer::ungisterVideo] video unregistered. current videoTabs:", this.videoTabs);
     }
   }
+
+  getVideoTab() {
+    // friendly reminder: if current tab doesn't have a video, 
+    // there won't be anything in this.videoTabs[this.currentTabId]
+    if (this.videoTabs[this.currentTabId]) {
+      return this.videoTabs[this.currentTabId];
+    }
+
+    // return something more or less empty if this tab doesn't have 
+    // a video registered for it
+    return {
+      host: this.currentSite,
+      frames: []
+    }
+  }
 }
 
 var server = new UWServer();

res/popup/js/popup.js

@@ -129,7 +129,8 @@ async function processReceivedMessage(message, port){
       port.postMessage({cmd: 'get-current-zoom'});
     }
     site = message.site;
-    loadConfig(message.site);
+    loadConfig(message.site.host);
+    loadFrames(message.site);
   } else if (message.cmd === 'set-current-zoom') {
     setCurrentZoom(message.zoom);
   }