diff --git a/platform/chromium/manifest.json b/platform/chromium/manifest.json
index e8b1eb112..2e7e33c19 100644
--- a/platform/chromium/manifest.json
+++ b/platform/chromium/manifest.json
@@ -2,7 +2,7 @@
     "manifest_version": 2,
 
     "name": "µBlock",
-    "version": "0.8.5.6",
+    "version": "0.8.5.7",
 
     "default_locale": "en",
     "description": "__MSG_extShortDesc__",
diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index d257f26dc..5d9b30bb0 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -45,7 +45,7 @@ vAPI.firefox = true;
 // TODO: read these data from somewhere...
 vAPI.app = {
     name: 'µBlock',
-    version: '0.8.5.6'
+    version: '0.8.5.7'
 };
 
 /******************************************************************************/
diff --git a/platform/safari/Update.plist b/platform/safari/Update.plist
index e9a130f3d..f5574ae33 100644
--- a/platform/safari/Update.plist
+++ b/platform/safari/Update.plist
@@ -14,7 +14,7 @@
 				<key>CFBundleVersion</key>
 				<string>{buildNumber}</string>
 				<key>URL</key>
-				<string>https://chrismatic.io/ublock/ublock-0.8.5.6.safariextz</string>
+				<string>https://chrismatic.io/ublock/ublock-0.8.5.7.safariextz</string>
 			</dict>
 		</array>
 	</dict>
diff --git a/src/js/storage.js b/src/js/storage.js
index aec5a98f5..ac87a64e3 100644
--- a/src/js/storage.js
+++ b/src/js/storage.js
@@ -662,7 +662,7 @@
         // https://github.com/gorhill/uBlock/issues/540
         // Disabling local mirroring for the time being
         userSettings.experimentalEnabled = false;
-        µb.mirrors.toggle(userSettings.experimentalEnabled);
+        µb.mirrors.toggle(false /* userSettings.experimentalEnabled */);
 
         µb.contextMenu.toggle(userSettings.contextMenuEnabled);
         µb.dynamicNetFilteringEngine.fromString(userSettings.dynamicFilteringString);
diff --git a/src/js/traffic.js b/src/js/traffic.js
index ed6e3995e..86d8cc45c 100644
--- a/src/js/traffic.js
+++ b/src/js/traffic.js
@@ -255,7 +255,7 @@ var onHeadersReceived = function(details) {
     // https://github.com/gorhill/uBlock/issues/540
     // Disabling local mirroring for the time being
     //if ( details.parentFrameId === -1 ) {
-    //    pageStore.skipLocalMirroring = headerStartWith(details.responseHeaders, 'content-security-policy') !== '';
+    //    pageStore.skipLocalMirroring = headerStartsWith(details.responseHeaders, 'content-security-policy') !== '';
     //}
 
     var requestURL = details.url;
@@ -324,7 +324,7 @@ var headerValue = function(headers, name) {
 
 /******************************************************************************/
 
-var headerStartWith = function(headers, prefix) {
+var headerStartsWith = function(headers, prefix) {
     var prefixLen = prefix.length;
     var i = headers.length;
     while ( i-- ) {