this fixes #1102

src/js/assets.js

@@ -271,6 +271,10 @@ var cachedAssetsManager = (function() {
         getEntries(onEntries);
     };
 
+    exports.rmrf = function() {
+        exports.remove(/./);
+    };
+
     exports.onRemovedListener = null;
 
     return exports;
@@ -468,6 +472,9 @@ var getRepoMetadata = function(callback) {
 /******************************************************************************/
 
 exports.setHomeURL = function(path, homeURL) {
+    if ( typeof homeURL !== 'string' || homeURL === '' ) {
+        return;
+    }
     homeURLs[path] = homeURL;
 };
 
@@ -1029,6 +1036,12 @@ exports.put = function(path, content, callback) {
 
 /******************************************************************************/
 
+exports.rmrf = function() {
+    cachedAssetsManager.rmrf();
+};
+
+/******************************************************************************/
+
 exports.metadata = function(callback) {
     var out = {};
 

src/js/messaging.js

@@ -1058,6 +1058,10 @@ var restoreUserData = function(request) {
         }, onCountdown);
     };
 
+    // https://github.com/gorhill/uBlock/issues/1102
+    // Ensure all currently cached assets are flushed from storage AND memory.
+    µb.assets.rmrf();
+
     // If we are going to restore all, might as well wipe out clean local
     // storage
     µb.XAL.keyvalRemoveAll(onAllRemoved);