diff --git a/src/angular-workers.js b/src/angular-workers.js
index e0c6820..f71914e 100644
--- a/src/angular-workers.js
+++ b/src/angular-workers.js
@@ -3,6 +3,7 @@ angular.module('FredrikSandell.worker-pool', [])
     var that = {};
     var urlToAngular;
     var serviceToUrlMap = {};
+    var importURLs = [];
     /*jshint laxcomma:true */
     /*jshint quotmark: false */
     var workerTemplate = [""
@@ -60,6 +61,11 @@ angular.module('FredrikSandell.worker-pool', [])
         return that;
     };
 
+    // add explicit URLs for importScripts(). Use-case: angular or/and worker code uses global libraries.
+    that.addImportURL = function (url) {
+        importURLs.push(url);
+    };		
+
     that.createAngularWorker = function (depFuncList) {
         //validate the input
 
@@ -104,6 +110,9 @@ angular.module('FredrikSandell.worker-pool', [])
 
     function createIncludeStatements(listOfServiceNames) {
         var includeString = '';
+        angular.forEach(importURLs, function (url) {
+            includeString += 'importScripts(\''+url+'\');';
+        });				
         angular.forEach(listOfServiceNames, function (serviceName) {
             if (serviceToUrlMap[serviceName]) {
                 includeString += 'importScripts(\''+serviceToUrlMap[serviceName].url+'\');';