diff --git a/src/js/background/assignManager.js b/src/js/background/assignManager.js
index dd1fc5e..93d4790 100644
--- a/src/js/background/assignManager.js
+++ b/src/js/background/assignManager.js
@@ -119,7 +119,7 @@ const assignManager = {
 
   async handleProxifiedRequest(requestInfo) {
     if(requestInfo.tabId === -1)
-      return {type: "direct"};
+      return Utils.DEFAULT_PROXY;
 
     const tab = await browser.tabs.get(requestInfo.tabId);
     const proxy = await proxifiedContainers.retrieveFromBackground(tab.cookieStoreId);
diff --git a/src/js/background/index.html b/src/js/background/index.html
index 86bccf1..cdbd82e 100644
--- a/src/js/background/index.html
+++ b/src/js/background/index.html
@@ -13,6 +13,7 @@
       "js/background/messageHandler.js",
     ]
 -->
+    <script type="text/javascript" src="../utils.js"></script>
     <script type="text/javascript" src="../proxified-containers.js"></script>
     <script type="text/javascript" src="backgroundLogic.js"></script>
     <script type="text/javascript" src="assignManager.js"></script>
diff --git a/src/js/popup.js b/src/js/popup.js
index 8dd3ff7..bdb2b87 100644
--- a/src/js/popup.js
+++ b/src/js/popup.js
@@ -7,7 +7,6 @@ const CONTAINER_UNHIDE_SRC = "/img/container-unhide.svg";
 const DEFAULT_COLOR = "blue";
 const DEFAULT_ICON = "circle";
 const NEW_CONTAINER_ID = "new";
-const DEFAULT_PROXY = {type: "direct"};
 
 const ONBOARDING_STORAGE_KEY = "onboarding-stage";
 
@@ -967,7 +966,7 @@ Logic.registerPanel(P_CONTAINER_EDIT, {
             icon: formValues.get("container-icon") || DEFAULT_ICON,
             color: formValues.get("container-color") || DEFAULT_COLOR
           },
-          proxy: proxifiedContainers.parseProxy(document.getElementById("edit-container-panel-proxy").value) || DEFAULT_PROXY
+          proxy: proxifiedContainers.parseProxy(document.getElementById("edit-container-panel-proxy").value) || Utils.DEFAULT_PROXY
         }
       });
       await Logic.refreshIdentities();
@@ -1085,7 +1084,7 @@ Logic.registerPanel(P_CONTAINER_EDIT, {
       edit_proxy_dom(result.proxy);
     }, (error) => {
       if(error.error === "uninitialized" || error.error === "doesnotexist") {
-        proxifiedContainers.set(identity.cookieStoreId, DEFAULT_PROXY, error.error === "uninitialized").then((result) => {
+        proxifiedContainers.set(identity.cookieStoreId, Utils.DEFAULT_PROXY, error.error === "uninitialized").then((result) => {
           edit_proxy_dom(result);
         }, (error) => {
           proxifiedContainers.report_proxy_error(error, "popup.js: unexpected set(...) error");
diff --git a/src/js/utils.js b/src/js/utils.js
index 86e18f0..b027824 100644
--- a/src/js/utils.js
+++ b/src/js/utils.js
@@ -18,7 +18,16 @@ window.Utils = {
     imageElement.addEventListener("error", errorListener);
     imageElement.addEventListener("load", loadListener);
     return imageElement;
-  },
-  DEFAULT_PROXY: Object.freeze({type: "direct"})
+  }
 
 };
+
+// The following creates a fake (but convincing) constant Utils.DEFAULT_PROXY
+Object.defineProperty(window.Utils, "DEFAULT_PROXY", {
+  value: Object.freeze({type: "direct"}),
+  writable: false,
+  enumerable: true,
+
+  // Setting configurable to false avoids deletion of Utils.DEFAULT_PROXY
+  configurable: false
+});