diff --git a/app/assets/javascripts/filtered_search/filtered_search_dropdown_manager.js b/app/assets/javascripts/filtered_search/filtered_search_dropdown_manager.js
index ee49a7be0b2..e6390f0855b 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_dropdown_manager.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_dropdown_manager.js
@@ -16,6 +16,7 @@ export default class FilteredSearchDropdownManager {
     page,
     isGroup,
     isGroupAncestor,
+    isGroupDecendent,
     filteredSearchTokenKeys,
   }) {
     this.container = FilteredSearchContainer.container;
@@ -26,6 +27,7 @@ export default class FilteredSearchDropdownManager {
     this.page = page;
     this.groupsOnly = isGroup;
     this.groupAncestor = isGroupAncestor;
+    this.isGroupDecendent = isGroupDecendent;
 
     this.setupMapping();
 
diff --git a/app/assets/javascripts/filtered_search/filtered_search_manager.js b/app/assets/javascripts/filtered_search/filtered_search_manager.js
index c6970d7837f..71b7e80335b 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_manager.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_manager.js
@@ -22,11 +22,13 @@ export default class FilteredSearchManager {
     page,
     isGroup = false,
     isGroupAncestor = false,
+    isGroupDecendent = false,
     filteredSearchTokenKeys = FilteredSearchTokenKeys,
     stateFiltersSelector = '.issues-state-filters',
   }) {
     this.isGroup = isGroup;
     this.isGroupAncestor = isGroupAncestor;
+    this.isGroupDecendent = isGroupDecendent;
     this.states = ['opened', 'closed', 'merged', 'all'];
 
     this.page = page;
diff --git a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
index a19bb882410..600024c21c3 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
@@ -1,5 +1,6 @@
 import _ from 'underscore';
-import AjaxCache from '../lib/utils/ajax_cache';
+import AjaxCache from '~/lib/utils/ajax_cache';
+import { objectToQueryString } from '~/lib/utils/common_utils';
 import Flash from '../flash';
 import FilteredSearchContainer from './container';
 import UsersCache from '../lib/utils/users_cache';
@@ -16,6 +17,21 @@ export default class FilteredSearchVisualTokens {
     };
   }
 
+  /**
+   * Returns a computed API endpoint
+   * and query string composed of values from endpointQueryParams
+   * @param {String} endpoint
+   * @param {String} endpointQueryParams
+   */
+  static getEndpointWithQueryParams(endpoint, endpointQueryParams) {
+    if (!endpointQueryParams) {
+      return endpoint;
+    }
+
+    const queryString = objectToQueryString(JSON.parse(endpointQueryParams));
+    return `${endpoint}?${queryString}`;
+  }
+
   static unselectTokens() {
     const otherTokens = FilteredSearchContainer.container.querySelectorAll('.js-visual-token .selectable.selected');
     [].forEach.call(otherTokens, t => t.classList.remove('selected'));
@@ -86,7 +102,10 @@ export default class FilteredSearchVisualTokens {
   static updateLabelTokenColor(tokenValueContainer, tokenValue) {
     const filteredSearchInput = FilteredSearchContainer.container.querySelector('.filtered-search');
     const baseEndpoint = filteredSearchInput.dataset.baseEndpoint;
-    const labelsEndpoint = `${baseEndpoint}/labels.json`;
+    const labelsEndpoint = FilteredSearchVisualTokens.getEndpointWithQueryParams(
+      `${baseEndpoint}/labels.json`,
+      filteredSearchInput.dataset.endpointQueryParams,
+    );
 
     return AjaxCache.retrieve(labelsEndpoint)
       .then(FilteredSearchVisualTokens.preprocessLabel.bind(null, labelsEndpoint))
diff --git a/app/assets/javascripts/lib/utils/common_utils.js b/app/assets/javascripts/lib/utils/common_utils.js
index e741789fbb6..ed90db317df 100644
--- a/app/assets/javascripts/lib/utils/common_utils.js
+++ b/app/assets/javascripts/lib/utils/common_utils.js
@@ -302,6 +302,14 @@ export const parseQueryStringIntoObject = (query = '') => {
     }, {});
 };
 
+/**
+ * Converts object with key-value pairs
+ * into query-param string
+ *
+ * @param {Object} params
+ */
+export const objectToQueryString = (params = {}) => Object.keys(params).map(param => `${param}=${params[param]}`).join('&');
+
 export const buildUrlWithCurrentLocation = param => (param ? `${window.location.pathname}${param}` : window.location.pathname);
 
 /**
diff --git a/app/assets/javascripts/pages/search/init_filtered_search.js b/app/assets/javascripts/pages/search/init_filtered_search.js
index 57f08701a4f..7fdf4ee0bf3 100644
--- a/app/assets/javascripts/pages/search/init_filtered_search.js
+++ b/app/assets/javascripts/pages/search/init_filtered_search.js
@@ -5,6 +5,7 @@ export default ({
   filteredSearchTokenKeys,
   isGroup,
   isGroupAncestor,
+  isGroupDecendent,
   stateFiltersSelector,
 }) => {
   const filteredSearchEnabled = FilteredSearchManager && document.querySelector('.filtered-search');
@@ -13,6 +14,7 @@ export default ({
       page,
       isGroup,
       isGroupAncestor,
+      isGroupDecendent,
       filteredSearchTokenKeys,
       stateFiltersSelector,
     });
diff --git a/spec/javascripts/filtered_search/filtered_search_visual_tokens_spec.js b/spec/javascripts/filtered_search/filtered_search_visual_tokens_spec.js
index f1da5f81c0f..756a654765b 100644
--- a/spec/javascripts/filtered_search/filtered_search_visual_tokens_spec.js
+++ b/spec/javascripts/filtered_search/filtered_search_visual_tokens_spec.js
@@ -128,6 +128,24 @@ describe('Filtered Search Visual Tokens', () => {
     });
   });
 
+  describe('getEndpointWithQueryParams', () => {
+    it('returns `endpoint` string as is when second param `endpointQueryParams` is undefined, null or empty string', () => {
+      const endpoint = 'foo/bar/labels.json';
+      expect(subject.getEndpointWithQueryParams(endpoint)).toBe(endpoint);
+      expect(subject.getEndpointWithQueryParams(endpoint, null)).toBe(endpoint);
+      expect(subject.getEndpointWithQueryParams(endpoint, '')).toBe(endpoint);
+    });
+
+    it('returns `endpoint` string with values of `endpointQueryParams`', () => {
+      const endpoint = 'foo/bar/labels.json';
+      const singleQueryParams = '{"foo":"true"}';
+      const multipleQueryParams = '{"foo":"true","bar":"true"}';
+
+      expect(subject.getEndpointWithQueryParams(endpoint, singleQueryParams)).toBe(`${endpoint}?foo=true`);
+      expect(subject.getEndpointWithQueryParams(endpoint, multipleQueryParams)).toBe(`${endpoint}?foo=true&bar=true`);
+    });
+  });
+
   describe('unselectTokens', () => {
     it('does nothing when there are no tokens', () => {
       const beforeHTML = tokensContainer.innerHTML;
diff --git a/spec/javascripts/lib/utils/common_utils_spec.js b/spec/javascripts/lib/utils/common_utils_spec.js
index 49799c31995..27f06573432 100644
--- a/spec/javascripts/lib/utils/common_utils_spec.js
+++ b/spec/javascripts/lib/utils/common_utils_spec.js
@@ -166,6 +166,21 @@ describe('common_utils', () => {
     });
   });
 
+  describe('objectToQueryString', () => {
+    it('returns empty string when `param` is undefined, null or empty string', () => {
+      expect(commonUtils.objectToQueryString()).toBe('');
+      expect(commonUtils.objectToQueryString('')).toBe('');
+    });
+
+    it('returns query string with values of `params`', () => {
+      const singleQueryParams = { foo: true };
+      const multipleQueryParams = { foo: true, bar: true };
+
+      expect(commonUtils.objectToQueryString(singleQueryParams)).toBe('foo=true');
+      expect(commonUtils.objectToQueryString(multipleQueryParams)).toBe('foo=true&bar=true');
+    });
+  });
+
   describe('buildUrlWithCurrentLocation', () => {
     it('should build an url with current location and given parameters', () => {
       expect(commonUtils.buildUrlWithCurrentLocation()).toEqual(window.location.pathname);