diff --git a/src/background.html b/src/background.html
index e681360..cc02035 100644
--- a/src/background.html
+++ b/src/background.html
@@ -26,8 +26,8 @@
 <script src="js/storage.js"></script>
 <script src="js/pagestats.js"></script>
 <script src="js/tab.js"></script>
-<script src="js/traffic.js"></script>
 <script src="js/uritools.js"></script>
+<script src="js/traffic.js"></script>
 <script src="js/useragent.js"></script>
 <script src="js/messaging-handlers.js"></script>
 <script src="js/start.js"></script>
diff --git a/src/js/httpsb.js b/src/js/httpsb.js
index 5ccd5d0..50179fd 100644
--- a/src/js/httpsb.js
+++ b/src/js/httpsb.js
@@ -73,7 +73,7 @@
     if ( '.css.eot.ttf.otf.svg.woff.woff2.'.indexOf(ext) !== -1 ) {
         return 'css';
     }
-    if ( '.ico.png.gif.jpg.jpeg.'.indexOf(ext) !== -1 ) {
+    if ( '.ico.png.gif.jpg.jpeg.bmp.'.indexOf(ext) !== -1 ) {
         return 'image';
     }
     return type;
diff --git a/src/js/start.js b/src/js/start.js
index f0ca2cc..e06e693 100644
--- a/src/js/start.js
+++ b/src/js/start.js
@@ -23,6 +23,16 @@
 
 /******************************************************************************/
 
+// rhill 2013-11-24: bind behind-the-scene virtual tab/url manually, since the
+// normal way forbid binding behind the scene tab.
+// https://github.com/gorhill/httpswitchboard/issues/67
+
+µMatrix.createPageStats(µMatrix.behindTheSceneURL);
+µMatrix.pageUrlToTabId[µMatrix.behindTheSceneURL] = µMatrix.behindTheSceneTabId;
+µMatrix.tabIdToPageUrl[µMatrix.behindTheSceneTabId] = µMatrix.behindTheSceneURL;
+
+/******************************************************************************/
+
 µMatrix.turnOn();
 
 /******************************************************************************/
@@ -106,22 +116,6 @@ chrome.webNavigation.onBeforeNavigate.addListener(onBeforeNavigateCallback);
 
 /******************************************************************************/
 
-// Load everything
-
-µMatrix.load();
-
-/******************************************************************************/
-
-// rhill 2013-11-24: bind behind-the-scene virtual tab/url manually, since the
-// normal way forbid binding behind the scene tab.
-// https://github.com/gorhill/httpswitchboard/issues/67
-
-µMatrix.createPageStats(µMatrix.behindTheSceneURL);
-µMatrix.pageUrlToTabId[µMatrix.behindTheSceneURL] = µMatrix.behindTheSceneTabId;
-µMatrix.tabIdToPageUrl[µMatrix.behindTheSceneTabId] = µMatrix.behindTheSceneURL;
-
-/******************************************************************************/
-
 // Initialize internal state with maybe already existing tabs
 
 chrome.tabs.query({ url: '<all_urls>' }, function(tabs) {
@@ -178,3 +172,10 @@ chrome.tabs.query({ url: '<all_urls>' }, function(tabs) {
 })();
 
 /******************************************************************************/
+
+// Load everything
+
+µMatrix.load();
+µMatrix.webRequest.start();
+
+/******************************************************************************/
diff --git a/src/js/traffic.js b/src/js/traffic.js
index 2576788..ee1270a 100644
--- a/src/js/traffic.js
+++ b/src/js/traffic.js
@@ -854,72 +854,75 @@ var requestTypeNormalizer = {
 
 /******************************************************************************/
 
-chrome.webRequest.onBeforeRequest.addListener(
-    //function(details) {
-    //    quickProfiler.start('onBeforeRequest');
-    //    var r = onBeforeRequestHandler(details);
-    //    quickProfiler.stop();
-    //    return r;
-    //},
-    onBeforeRequestHandler,
-    {
-        "urls": [
-            "http://*/*",
-            "https://*/*",
-            "chrome-extension://*/*"
-        ],
-        "types": [
-            "main_frame",
-            "sub_frame",
-            'stylesheet',
-            "script",
-            "image",
-            "object",
-            "xmlhttprequest",
-            "other"
-        ]
-    },
-    [ "blocking" ]
-);
-
-//console.log('µMatrix > Beginning to intercept net requests at %s', (new Date()).toISOString());
-
-chrome.webRequest.onBeforeSendHeaders.addListener(
-    onBeforeSendHeadersHandler,
-    {
-        'urls': [
-            "http://*/*",
-            "https://*/*"
-        ]
-    },
-    ['blocking', 'requestHeaders']
-);
-
-chrome.webRequest.onHeadersReceived.addListener(
-    onHeadersReceived,
-    {
-        'urls': [
-            "http://*/*",
-            "https://*/*"
-        ]
-    },
-    ['blocking', 'responseHeaders']
-);
-
-chrome.webRequest.onErrorOccurred.addListener(
-    onErrorOccurredHandler,
-    {
-        'urls': [
-            "http://*/*",
-            "https://*/*"
-        ]
-    }
-);
+var start = function() {
+    chrome.webRequest.onBeforeRequest.addListener(
+        //function(details) {
+        //    quickProfiler.start('onBeforeRequest');
+        //    var r = onBeforeRequestHandler(details);
+        //    quickProfiler.stop();
+        //    return r;
+        //},
+        onBeforeRequestHandler,
+        {
+            "urls": [
+                "http://*/*",
+                "https://*/*",
+                "chrome-extension://*/*"
+            ],
+            "types": [
+                "main_frame",
+                "sub_frame",
+                'stylesheet',
+                "script",
+                "image",
+                "object",
+                "xmlhttprequest",
+                "other"
+            ]
+        },
+        [ "blocking" ]
+    );
+
+    //console.log('µMatrix > Beginning to intercept net requests at %s', (new Date()).toISOString());
+
+    chrome.webRequest.onBeforeSendHeaders.addListener(
+        onBeforeSendHeadersHandler,
+        {
+            'urls': [
+                "http://*/*",
+                "https://*/*"
+            ]
+        },
+        ['blocking', 'requestHeaders']
+    );
+
+    chrome.webRequest.onHeadersReceived.addListener(
+        onHeadersReceived,
+        {
+            'urls': [
+                "http://*/*",
+                "https://*/*"
+            ]
+        },
+        ['blocking', 'responseHeaders']
+    );
+
+    chrome.webRequest.onErrorOccurred.addListener(
+        onErrorOccurredHandler,
+        {
+            'urls': [
+                "http://*/*",
+                "https://*/*"
+            ]
+        }
+    );
+};
 
 /******************************************************************************/
 
 return {
-    blockedRootFramePrefix: 'data:text/html;base64,' + btoa(rootFrameReplacement).slice(0, 80)
+    blockedRootFramePrefix: 'data:text/html;base64,' + btoa(rootFrameReplacement).slice(0, 80),
+    start: start
 };
 
 /******************************************************************************/