diff --git a/development/build/scripts.js b/development/build/scripts.js
index f942c4c1b..f6dc542c4 100644
--- a/development/build/scripts.js
+++ b/development/build/scripts.js
@@ -473,21 +473,21 @@ function createFactoredBuild({
               groupSet,
               commonSet,
               browserPlatforms,
-              useLavamoat: false,
+              useLavamoat: true,
             });
             renderHtmlFile({
               htmlName: 'notification',
               groupSet,
               commonSet,
               browserPlatforms,
-              useLavamoat: false,
+              useLavamoat: true,
             });
             renderHtmlFile({
               htmlName: 'home',
               groupSet,
               commonSet,
               browserPlatforms,
-              useLavamoat: false,
+              useLavamoat: true,
             });
             break;
           }
diff --git a/lavamoat/browserify/beta/policy-override.json b/lavamoat/browserify/beta/policy-override.json
index a3d850f83..c07ab4ac6 100644
--- a/lavamoat/browserify/beta/policy-override.json
+++ b/lavamoat/browserify/beta/policy-override.json
@@ -55,6 +55,22 @@
       "globals": {
         "localStorage": true
       }
+    },
+    "react-dom": {
+      "globals": {
+        "HTMLIFrameElement": true
+      }
+    },
+    "react-devtools": {
+      "packages": {
+        "react-devtools-core": true
+      }
+    },
+    "react-devtools-core": {
+      "globals": {
+        "setTimeout": true,
+        "WebSocket": true
+      }
     }
   }
 }
diff --git a/lavamoat/browserify/flask/policy-override.json b/lavamoat/browserify/flask/policy-override.json
index 71fd98f61..cee2cc80e 100644
--- a/lavamoat/browserify/flask/policy-override.json
+++ b/lavamoat/browserify/flask/policy-override.json
@@ -50,6 +50,22 @@
       "globals": {
         "localStorage": true
       }
+    },
+    "react-dom": {
+      "globals": {
+        "HTMLIFrameElement": true
+      }
+    },
+    "react-devtools": {
+      "packages": {
+        "react-devtools-core": true
+      }
+    },
+    "react-devtools-core": {
+      "globals": {
+        "setTimeout": true,
+        "WebSocket": true
+      }
     }
   }
 }
diff --git a/lavamoat/browserify/main/policy-override.json b/lavamoat/browserify/main/policy-override.json
index a3d850f83..c07ab4ac6 100644
--- a/lavamoat/browserify/main/policy-override.json
+++ b/lavamoat/browserify/main/policy-override.json
@@ -55,6 +55,22 @@
       "globals": {
         "localStorage": true
       }
+    },
+    "react-dom": {
+      "globals": {
+        "HTMLIFrameElement": true
+      }
+    },
+    "react-devtools": {
+      "packages": {
+        "react-devtools-core": true
+      }
+    },
+    "react-devtools-core": {
+      "globals": {
+        "setTimeout": true,
+        "WebSocket": true
+      }
     }
   }
 }
diff --git a/patches/zxcvbn+4.4.2.patch b/patches/zxcvbn+4.4.2.patch
new file mode 100644
index 000000000..9975da28d
--- /dev/null
+++ b/patches/zxcvbn+4.4.2.patch
@@ -0,0 +1,13 @@
+diff --git a/node_modules/zxcvbn/lib/matching.js b/node_modules/zxcvbn/lib/matching.js
+index 3940bad..748da8b 100644
+--- a/node_modules/zxcvbn/lib/matching.js
++++ b/node_modules/zxcvbn/lib/matching.js
+@@ -13,7 +13,7 @@ build_ranked_dict = function(ordered_list) {
+   i = 1;
+   for (o = 0, len1 = ordered_list.length; o < len1; o++) {
+     word = ordered_list[o];
+-    result[word] = i;
++    Reflect.defineProperty(result, word, { value: i, configurable: true, enumerable: true, writable: true });
+     i += 1;
+   }
+   return result;