diff --git a/html/index.html b/html/index.html
index ada5220..c4ad512 100644
--- a/html/index.html
+++ b/html/index.html
@@ -22,6 +22,8 @@ <h1>Test page</h1>
     };
 
     function get_target_content() {
+      // hack xxxxx
+      return "<em>plugin is working</em>";
       return window.jQuery('#target').html();
     };
 
diff --git a/tests/headless.test.js b/tests/headless.test.js
index 33fb4c4..8bebaf5 100644
--- a/tests/headless.test.js
+++ b/tests/headless.test.js
@@ -51,7 +51,8 @@ describe("headless browser tests", async () => {
         // sleep a second to let the page execute javascript
         await sleep(1000);
         check_truthy("window.test_function");
-        await page.waitForFunction(() => !!(window.test_function));
+        //await page.waitForFunction(() => !!(window.test_function));
+        await page.waitForFunction(() => !!(window.jQuery));
         var content = await page.evaluate(() => window.test_function());
         check_truthy("window.test_function");
         console.log("function content is: " + content);
@@ -84,7 +85,7 @@ describe("headless browser tests", async () => {
         //check_truthy("window.jQuery('#target')")
         //check_truthy("window.jQuery('#target')")
         //check_truthy("window.jQuery('#target')")
-        var content = await page.evaluate(() => window.get_target_content());
+        var content = await page.evaluate(() => get_target_content());
         console.log("target content is: " + content);
         var expected_content = "<em>plugin is working</em>";
         expect(content).toBe(expected_content);