diff --git a/src/js/1p-filters.js b/src/js/1p-filters.js
index ce00759d2..645d231d5 100644
--- a/src/js/1p-filters.js
+++ b/src/js/1p-filters.js
@@ -70,7 +70,9 @@ let cachedUserFilters = '';
         if ( response instanceof Object === false ) { return; }
         if ( response.hintUpdateToken !== undefined ) {
             const mode = cmEditor.getMode();
-            cmEditor.setOption('filterOnHeaders', response.filterOnHeaders === true);
+            if ( typeof response.filterOnHeaders === 'boolean' ) {
+                cmEditor.setOption('filterOnHeaders', response.filterOnHeaders);
+            }
             if ( mode.setHints instanceof Function ) {
                 mode.setHints(response);
             }
diff --git a/src/js/reverselookup.js b/src/js/reverselookup.js
index 10616dc93..757c62108 100644
--- a/src/js/reverselookup.js
+++ b/src/js/reverselookup.js
@@ -131,8 +131,9 @@ const fromNetFilter = async function(rawFilter) {
     const writer = new CompiledListWriter();
     const parser = new sfp.AstFilterParser({
         expertMode: true,
-        nativeCssHas: vAPI.webextFlavor.env.includes('native_css_has'),
+        filterOnHeaders: true,
         maxTokenLength: staticNetFilteringEngine.MAX_TOKEN_LENGTH,
+        nativeCssHas: vAPI.webextFlavor.env.includes('native_css_has'),
     });
     parser.parse(rawFilter);
 
diff --git a/src/js/storage.js b/src/js/storage.js
index c9f4a83b8..3f742c015 100644
--- a/src/js/storage.js
+++ b/src/js/storage.js
@@ -1051,8 +1051,9 @@ self.addEventListener('hiddenSettingsChanged', ( ) => {
         this.hiddenSettings.filterAuthorMode !== false;
     const parser = new sfp.AstFilterParser({
         expertMode,
-        nativeCssHas: vAPI.webextFlavor.env.includes('native_css_has'),
+        filterOnHeaders: µb.hiddenSettings.filterOnHeaders,
         maxTokenLength: staticNetFilteringEngine.MAX_TOKEN_LENGTH,
+        nativeCssHas: vAPI.webextFlavor.env.includes('native_css_has'),
     });
     const compiler = staticNetFilteringEngine.createCompiler(parser);
     const lineIter = new LineIterator(