diff --git a/bundlesize.config.json b/bundlesize.config.json
index 5f5fc5def..3d27c4957 100644
--- a/bundlesize.config.json
+++ b/bundlesize.config.json
@@ -13,7 +13,7 @@
 	},
 	{
 		"resourceModule": "skins.vector.search",
-		"maxSize": "3.3 kB"
+		"maxSize": "3.2 kB"
 	},
 	{
 		"resourceModule": "skins.vector.icons",
diff --git a/resources/skins.vector.search/instrumentation.js b/resources/skins.vector.search/instrumentation.js
index 5a3ce0d58..8f1128fcf 100644
--- a/resources/skins.vector.search/instrumentation.js
+++ b/resources/skins.vector.search/instrumentation.js
@@ -6,7 +6,6 @@
  * @see https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/skins/Vector/+/refs/heads/master/includes/Constants.php
  */
 const INPUT_LOCATION_MOVED = 'header-moved',
-	wgScript = mw.config.get( 'wgScript' ),
 	// T251544: Collect search performance metrics to compare Vue search with
 	// mediawiki.searchSuggest performance. Marks and Measures will only be
 	// recorded on the Vector skin and only if browser supported.
@@ -122,35 +121,6 @@ function getWprovFromResultIndex( index ) {
  * @property {string} [url]
  */
 
-/**
- * @typedef {Object} GenerateUrlMeta
- * @property {number} index
- */
-
-/**
- * Used by the Vue-enhanced search component to generate URLs for the search results. Adds a
- * `wprov` paramater to the URL to satisfy the SearchSatisfaction instrumentation.
- *
- * @see getWprovFromResultIndex
- *
- * @param {SearchResultPartial|string} suggestion
- * @param {GenerateUrlMeta} meta
- * @return {string}
- */
-function generateUrl( suggestion, meta ) {
-	const result = new mw.Uri( wgScript );
-
-	if ( typeof suggestion !== 'string' ) {
-		suggestion = suggestion.title;
-	}
-
-	result.query.title = 'Special:Search';
-	result.query.suggestion = suggestion;
-	result.query.wprov = getWprovFromResultIndex( meta.index );
-
-	return result.toString();
-}
-
 /**
  * Return a new list of search results,
  * with the `wprov` parameter added to each result's url (if any).
@@ -174,7 +144,6 @@ function addWprovToSearchResultUrls( results, offset ) {
  * @typedef {Object} Instrumentation
  * @property {Object} listeners
  * @property {Function} getWprovFromResultIndex
- * @property {Function} generateUrl
  * @property {Function} addWprovToSearchResultUrls
  */
 
@@ -203,6 +172,5 @@ module.exports = {
 		onSubmit: onSuggestionClick
 	},
 	getWprovFromResultIndex,
-	generateUrl,
 	addWprovToSearchResultUrls
 };
diff --git a/tests/jest/instrumentation.test.js b/tests/jest/instrumentation.test.js
index 64148f78e..0d4403f86 100644
--- a/tests/jest/instrumentation.test.js
+++ b/tests/jest/instrumentation.test.js
@@ -10,17 +10,6 @@ describe( 'instrumentation', () => {
 			.toBe( expected );
 	} );
 
-	describe( 'generateUrl', () => {
-		test.each( [
-			[ 'string', 'title' ],
-			[ 'object', { title: 'title' } ]
-		] )( 'should generate URL from %s', ( _name, suggestion ) => {
-			const meta = { index: 1 };
-			expect( instrumentation.generateUrl( suggestion, meta ) )
-				.toBe( 'https://host/?title=Special%3ASearch&suggestion=title&wprov=acrw1_1' );
-		} );
-	} );
-
 	test( 'addWprovToSearchResultUrls without offset', () => {
 		const url1 = 'https://host/?title=Special%3ASearch&search=Aa',
 			url2Base = 'https://host/?title=Special%3ASearch&search=Ab',
diff --git a/tests/jest/urlGenerator.test.js b/tests/jest/urlGenerator.test.js
new file mode 100644
index 000000000..013969ad6
--- /dev/null
+++ b/tests/jest/urlGenerator.test.js
@@ -0,0 +1,53 @@
+const urlGenerator = require( '../../resources/skins.vector.search/urlGenerator.js' );
+
+describe( 'urlGenerator', () => {
+	describe( 'default', () => {
+		test.each( [
+			[ 'string', 'title', '&fulltext=1' ],
+			[ 'object', { title: 'title', id: 0, key: '' } ]
+		] )( 'suggestion as %s', ( _name, suggestion, extraParams = '' ) => {
+			const config = {
+				get: jest.fn().mockImplementation( ( key, fallback ) => {
+					if ( key === 'wgScript' ) {
+						return '/w/index.php';
+					}
+					return fallback;
+				} ),
+				set: jest.fn()
+			};
+
+			expect( urlGenerator( config ).generateUrl( suggestion ) )
+				.toBe( `/w/index.php?title=Special%3ASearch${extraParams}&search=title` );
+		} );
+
+		test( 'custom params, articlePath', () => {
+			const config = {
+				get: jest.fn().mockImplementation( ( _key, fallback ) => {
+					return fallback;
+				} ),
+				set: jest.fn()
+			};
+
+			expect( urlGenerator( config ).generateUrl(
+				{ title: 'title', id: 0, key: '' },
+				{ TITLE: 'SPECIAL:SEARCH' },
+				'/W/INDEX.PHP'
+			) ).toBe( '/W/INDEX.PHP?TITLE=SPECIAL%3ASEARCH&search=title' );
+		} );
+	} );
+
+	test( 'custom', () => {
+		const customGenerator = {};
+		const config = {
+			get: jest.fn().mockImplementation( ( key, fallback ) => {
+				if ( key === 'wgVectorSearchUrlGenerator' ) {
+					return customGenerator;
+				}
+				return fallback;
+			} ),
+			set: jest.fn()
+		};
+
+		expect( urlGenerator( config ) ).toBe( customGenerator );
+	} );
+} );